Patent Publication Number: US-11042744-B2

Title: Information processing apparatus and method for conversion of video picture into text

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is entitled and claims the benefit of Japanese Patent Application No. 2018-119668, filed on Jun. 25, 2018, the disclosure of which including the specification, drawings and abstract is incorporated herein by reference in its entirety. 
     TECHNICAL FIELD 
     The present disclosure relates to an information processing apparatus and a method for conversion of a video picture into a text. 
     BACKGROUND ART 
     Recently, in order to efficiently support work of a police officer, studies on an operation such as causing a police officer at patrol to wear or own a wearable camera to record an imaged video picture have been in progress. In addition, operations such as mounting an on-vehicle camera on a police vehicle to record an imaged video picture have been in progress. 
     Conventionally, there has been proposed a minutes information generation system for generating minutes information by using a voice recognizing means for text-converting voice information into text information (for example, refer to PTL 1). 
     CITATION LIST 
     Patent Literature 
     PTL 1 
     Japanese Patent Application Laid-Open No. 2009-86207 
     SUMMARY OF INVENTION 
     Technical Problem 
     A police officer may generate a document of a report or the like about a case, for example. The police officer, for example, inputs characters in an apparatus of a key board or the like to generate a document, and the work becomes a heavy burden for the police officer. The document is required in accuracy about the case content, and it takes time to do the production work. 
     One non-limiting and exemplary embodiment facilitates providing an information processing apparatus and a method for conversion of a video picture into a text to facilitate production of a document associated with a case at the police. 
     Solution to Problem 
     An information processing apparatus according to an aspect of the present disclosure includes: an obtainer that obtains video picture data designated by a terminal apparatus from a storage apparatus storing video picture data of a video picture shot by a wearable camera attached to or owned by a police officer or by an on-vehicle camera mounted on a police vehicle; a converter that extracts voice data included in the obtained video picture data and converts the extracted voice data into text data; and a transmitter that transmits the text data to the terminal apparatus. 
     A method for conversion of a video picture into a text, according to an aspect of the present disclosure, includes: obtaining video picture data designated by a terminal apparatus from a storage apparatus storing video picture data of a video picture shot by a wearable camera attached to or owned by a police officer or by an on-vehicle camera mounted on a police vehicle; extracting voice data included in the obtained video picture data; converting the voice data into text data; and transmitting the text data to the terminal apparatus. 
     These comprehensive and specific aspects may be realized by a system, a method, an integrated circuit, a computer program, or a record medium, and may be realized by an optional combination of a system, an apparatus, a method, an integrated circuit, a computer program and a record medium. 
     Advantageous Effects of Invention 
     According to an aspect of the present disclosure, the production of the document associated with the case at the police is facilitated. 
     Further advantages and effects in an aspect of the present disclosure will be apparent from the specification and the accompanying drawings. Such advantages and/or effects will be respectively provided by some embodiments and the features described in the specification and the accompanying drawings, but all of them are not necessarily provided to obtain one or more of the same features. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a diagram showing an example of a document production system according to Embodiment 1; 
         FIG. 2  is a diagram explaining an example of metadata; 
         FIG. 3  is a diagram explaining an example of a concept of video data to which the metadata is added; 
         FIG. 4  is a diagram showing an example of an AT file generated by a server; 
         FIG. 5A  is a diagram explaining an example of an operation of reproducing moving pictures from the AT file; 
         FIG. 5B  is a diagram explaining an example of an operation of reproducing moving pictures from the AT file; 
         FIG. 6  is a diagram showing a block configuration example of a terminal apparatus; 
         FIG. 7  is a diagram showing a block configuration example of a server; 
         FIG. 8  is a diagram showing a block configuration example of a server; 
         FIG. 9A  is a diagram showing a screen example of the terminal apparatus in a generation operation of the AT file; 
         FIG. 9B  is a diagram showing a screen example of the terminal apparatus in the generation operation of the AT file; 
         FIG. 9C  is a diagram showing a screen example of the terminal apparatus in the generation operation of the AT file; 
         FIG. 10  is a sequence diagram showing an AT file generation operation example in a document production system; 
         FIG. 11A  is a diagram showing a screen example of the terminal apparatus in a report generation operation; 
         FIG. 11B  is a diagram showing a screen example of the terminal apparatus in the report generation operation; 
         FIG. 11C  is a diagram showing a screen example of the terminal apparatus in the report generation operation; 
         FIG. 11D  is a diagram showing a screen example of the terminal apparatus in the report generation operation; 
         FIG. 12  is a sequence diagram showing a report generation operation example in the document production system; 
         FIG. 13A  is a diagram showing a screen example of the terminal apparatus in an export operation; 
         FIG. 13B  is a diagram showing a screen example of the terminal apparatus in the export operation; 
         FIG. 13C  is a diagram showing a screen example of the terminal apparatus in the export operation; 
         FIG. 13D  is a diagram showing a screen example of the terminal apparatus in the export operation; 
         FIG. 14  is a sequence diagram showing an export operation example in the document production system; 
         FIG. 15  is a diagram showing an example of a summary video generation system according to Embodiment 2; 
         FIG. 16  is a diagram explaining an example of intelligent metadata; 
         FIG. 17  is diagram explaining a generation example of an intelligent metafile; 
         FIG. 18  is a diagram explaining a generation example of a summary video file; 
         FIG. 19  is a diagram showing a block configuration example of a server; 
         FIG. 20  is a diagram showing a block configuration example of the server; 
         FIG. 21A  is a diagram showing a screen example of the terminal apparatus in a generation operation of the summary video file; 
         FIG. 21B  is a diagram showing a screen example of the terminal apparatus in the generation operation of the summary video file; 
         FIG. 21C  is a diagram showing a screen example of the terminal apparatus in the generation operation of the summary video file; 
         FIG. 21D  is a diagram showing a screen example of the terminal apparatus in the generation operation of the summary video file; 
         FIG. 22  is a sequence diagram showing a summary video file generation operation example in the summary video generation system; 
         FIG. 23A  is a diagram showing a screen example of the terminal apparatus in a browsing operation of the summary video file; 
         FIG. 23B  is a diagram showing a screen example of the terminal apparatus in the browsing operation of the summary video file; 
         FIG. 23C  is a diagram showing a screen example of the terminal apparatus in the browsing operation of the summary video file; 
         FIG. 23D  is a diagram showing a screen example of the terminal apparatus in the browsing operation of the summary video file; 
         FIG. 24  is a sequence diagram showing a summary video file reproduction operation example in the summary video generation system; 
         FIG. 25  is a diagram showing a screen example of the terminal apparatus in the export operation; 
         FIG. 26  is a sequence diagram showing an export operation example in the document production system; 
         FIG. 27  is a diagram showing a screen example of the terminal apparatus in a generation operation of the AT file; and 
         FIG. 28  is a sequence diagram showing an AT file generation operation example in the summary video generation system. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Hereinafter, an explanation will be in detail made of embodiments in the present invention with reference to the accompanying drawings as needed. However, explanations detailed more than necessary may be omitted. For example, in some cases a detailed explanation of the well-known items or an overlapping explanation of the substantially identical components will be omitted. This is because it is avoided to unnecessarily make the following explanation wordy and understanding of those skilled in the art is facilitated. 
     The accompanying drawings and the following explanation are provided for those skilled in the art to fully understand the present disclosure and have no intent of limiting the subject defined in the claims. 
     Embodiment 1 
       FIG. 1  is a diagram showing an example of a document production system according to Embodiment 1. As shown in  FIG. 1 , the document production system has terminal apparatus  1  and servers  2 ,  3 . Terminal apparatus  1 , server  2 , and server  3  can communicate with each other through a network, for example, a Local Area Network (LAN) or the Internet. 
     Functions of servers  2 ,  3  may be realized by a single server. The functions of servers  2 ,  3  may be realized by three or more servers. Servers  2 ,  3  may be assumed as a single information processing apparatus. That is, the information processing apparatus may be assumed to be configured of servers  2 ,  3 . The information processing apparatus may be configured of one or more servers. 
     Terminal apparatus  1  is a terminal apparatus, for example, a personal computer. Terminal apparatus  1  is disposed at a police station, for example. Terminal apparatus  1  is used, for example, for document production of a report of a case or for viewing a case video. 
     Information on cases is stored in server  2 . For example, video files (video data) of case videos shot by a wearable camera attached to or owned by a police officer are stored in server  2 . In addition, video files of case videos shot by an on-vehicle camera mounted on a police vehicle are stored in server  2 . 
     Hereinafter, when the wearable camera and the on-vehicle camera are not particularly distinguished, each of them may be called just a camera in some cases. The camera may transmit the video data to server  2  in the middle of shooting, for example. In addition, the camera may transmit the video file to server  2  after shooting finish, for example. Consequently the video file of the case video shot by the camera is stored in server  2 . 
     Server  3  converts voices into texts. The video file is transmitted to server  3  from server  2 . Server  3  converts voice data included in the video file transmitted from server  2  into text data. Server  3  transmits a file converted into text from voice (hereinafter, may be called “AT file”) including the converted text data to server  2 . The AT file is a binary file, for example. 
     Server  2  classifies cases by folders for management, for example. The video file and the AT file are classified for each case and are stored in a folder corresponding thereto. Server  2  may be called a server for managing contents on cases. 
     The video file stored in server  2  may be used, for example, as an evidence or the like of a case, and cannot be deleted or edited. However, the copied video file may be edited. Servers  2 ,  3  may be arranged, for example, at the police station or at another place. 
     An explanation will be made of a schematic operation example of the document production system in  FIG. 1 . For example, a user as a police officer uses terminal apparatus  1  to select (retrieve) a case for producing a report of the case. Herein it is assumed that the user selects case A as a case for producing a report. Terminal apparatus  1  transmits information of case A selected by the user to server  2  (step S 1 ). 
     When server  2  receives the information of case A transmitted from terminal apparatus  1 , server  2  obtains a video file from a folder corresponding to case A. Server  2  transmits a copy of the obtained video file to server  3  (step S 2 ). As described later, metadata (for example, refer to  FIG. 2  or  FIG. 3 ) is included in the video file. The metadata is added by a camera. 
     Server  3  extracts voice data included in the video file transmitted from server  2  and converts the voice data into text data. Server  3  generates an AT file (for example, refer to  FIG. 4 ) including the converted text data. As described later, the AT file includes, for example, date and time (time stamp) when voices in the video file were uttered and still images at that date and time. In other words, the AT file includes an utterance time of a person appearing in the video picture of the video file, a still image at that time, and a text of voices uttered by the person. 
     Server  3  transmits the generated AT file to server  2  (step S 3 ). 
     Server  2  stores the AT file of case A transmitted from server  3  in the folder of case A. Consequently the video file of case A and the AT file of case A are stored (reserved) in the folder of case A. 
     Server  2  displays, for example, the AT file of case A stored in the folder on terminal apparatus  1  in response to access from terminal apparatus  1  (step A 4 ). Consequently the user can view the AT file using terminal apparatus  1 . That is, the user can view the voice included in the video picture of the video file as the text. 
     As described later, the user can use terminal apparatus  1  to convert the AT file into a file (hereinafter, may be called “general-purpose file”) that can be browsed with a general-purpose application such as WORD (registered trademark) or EXCEL (registered trademark). For example, the user may use, for example, the converted general-purpose file as a report of case A or may edit the converted general-purpose file to be used as a report of case A. 
     In this way, the document production system extracts the voice data from the video file of the case for producing the report and converts the extracted voice data into text data. Then the document production system generates an AT file including the converted text data. Consequently the user can facilitate production of the document associated with the case in the police. 
     It should be noted that the AT file of case A is stored in the folder of case A. Accordingly the user can access the AT file of case A at any time. 
       FIG. 2  is a diagram explaining an example of the metadata. The metadata includes, for example, data shown in  FIG. 2 . The metadata is added to the video data by a camera. 
     “Patlite (registered trademark) ON” of the metadata is added to the video data when Patlite of a police vehicle is turned on. For example, when the Patlite is turned on by a user, the police vehicle notifies a camera of the event that Patlite is turned on. The camera adds metadata of “Patlite ON” to the video data in response to notification of “Patlite ON” by the police vehicle. 
     “Sudden starting detection” of the metadata is added to the video data when the police vehicle is suddenly-started. For example, when the police vehicle is suddenly-started by the user, the police vehicle notifies the camera of having been suddenly-started. The camera adds the metadata of “sudden starting detection” to the video data in response to the notification of the sudden start of the police vehicle. 
     “Collision detection” of the metadata is added to the video data when the police vehicle is hit by something (or collides with something). For example, when the police vehicle is hit by something, the police vehicle notifies the camera of having been hit by something. The camera adds the metadata of “collision detection” to the video data in response to notification of the collision of the police vehicle. 
     “Back door opening” of the metadata is added to the video data when a back door of the police vehicle is opened. For example, when the back door is opened, the police vehicle notifies the camera of the back door having been opened. The camera adds the metadata of “back door opening” to the video data in response to the notification of the back door opening of the police vehicle. 
     “Takeout of gun” of the metadata is added to the video data when a gun is taken out of a gun folder. For example, the gun folder is provided with a sensor for detecting the takeout of a gun, and when a gun is taken out of the gun folder, notifies the camera of the gun being taken out of the gun folder. The camera adds the metadata of “takeout of gun” to the video data in response to the notification of takeout of the gun by the sensor. 
     “speed excess detection” of the metadata is added to the video data when the police vehicle exceeds a speed limit. For example, the police vehicle is provided with a speed sensor, and when the police vehicle exceeds a speed limit, notifies the camera of the speed excess. The camera adds the metadata of “speed excess detection” to the video data in response to the notification of the speed excess of the police vehicle. 
     “Manual record on/off” of the metadata is added to the video data when a camera is turned on/off by a user. 
     “Dash detection” of the metadata is added to the video data when a wearable camera attached to a user detects sudden start running of the user. The wearable camera is provided with, for example, an acceleration sensor or an angular velocity sensor, making it possible to detect the sudden start running of the user. 
     “Falling detection” of the metadata is added to the video data when a wearable camera attached to a user detects falling of the user. The wearable camera is provided with, for example, an acceleration sensor or an angular velocity sensor, making it possible to detect the falling of the user. 
     “Fight detection” of the metadata is added to the video data when a camera detects a fight of a user. The user wears, for example, a biological sensor wireless communicating with the camera. The biological sensor obtains, for example, at least one of a heart rate, sweating, and a body temperature of a user as biological information. The biological sensor transmits the obtained biological information of the user to the camera by wireless communication. The camera detects the fight of the user from the biological information of the user received from the biological sensor. For example, the camera detects the fight of the user from a rise in the heart rate, the sweating, and the body temperature of the biological information of the user received from the biological sensor. 
     “Exciting state detection” of the metadata is added to the video data when a camera detects an exciting state of a user. The user wears the aforementioned biological sensor. The camera can detect the exciting state of the user from the biological information of the user transmitted from the biological sensor. 
     “GPS (global positioning system) information)” of the metadata is added to the video data when a camera detects voices. The GPS information shows a position of a user. The camera is provided with a GPS apparatus mounted thereon. 
     The metadata as shown in  FIG. 2  can be said as information on an event having occurred associated with a case. For example, Patlite is turned on when the case occurs. Accordingly “Patlite ON” of the metadata can be said as the event having occurred associated with the case. When a criminal suddenly escapes, a user starts to run for chasing down the criminal. Accordingly “dash detection” of the metadata can be said as the event having occurred associated with the case. 
     It should be noted that the metadata is not limited to the example in  FIG. 2 . The metadata may include other information on an event having occurred associated with a case. 
       FIG. 3  is a diagram explaining an example of a concept of the video data to which the metadata is added.  FIG. 3  shows a partial frame of the video picture shot by the wearable camera. A horizontal axis in  FIG. 3  shows time. 
     In time t 1 , the wearable camera is assumed to detect the Patlite ON of a police vehicle. In this case, the metadata (tag) of the Patlite ON is added to the video data at time t 1 . 
     In time t 2 , the wearable camera is assumed to detect sudden start running of a police vehicle. In this case, the metadata of the sudden start running detection is added to the video data at time t 2 . 
     In time t 3 , the wearable camera is assumed to detect dash of a user. In this case, the metadata of the dash detection is added to the video data at time t 3 . 
       FIG. 4  is a diagram showing an example of an AT file generated by server  3 . As shown in  FIG. 4 , AT file  10  includes time stamps  11   a ,  11   b , identifiers  12   a ,  12   b , texts  13   a ,  13   b , metadata  14   a ,  14   b , and images  15   a ,  15   b.    
     Server  3  receives, as explained in  FIG. 1 , the video file including the metadata from server  2 . Server  3  extracts voice data included in the received video file. The video file includes information of date and time for shooting as well. Herein the video file is defined as a video file shot by the wearable camera. 
     Time stamps  11   a ,  11   b  included in AT file  10  show the date and time when the voice extracted by server  3  is uttered. That is, the time stamps  11   a ,  11   b  show the date and time when a person appearing in the video picture of the video file utters. 
     Identifiers  12   a ,  12   b  are identifiers for identifying a speaker that utters voices. Server  3 , for example, analyzes a voice sound of the extracted voice to identify a speaker having uttered the voice. Speakers A, B appear in an example in  FIG. 4 . 
     Texts  13   a ,  13   b  show texts of the voices extracted by server  3 . Server  3  converts the voices extracted from the video file into texts  13   a ,  13   b , and includes texts  13   a ,  13   b  in AT file  10 . In the example in  FIG. 4 , it is understood that Speaker A utters “Freeze” and Speaker B utters “No”. 
     Metadata  14   a ,  14   b  show metadata added at times shown by time stamps  11   a ,  11   b  or before/after the times (for example, before/after one minute). Server  3  extracts metadata  14   a ,  14   b  added at times shown by time stamps  11   a ,  11   b  or before/after the times and includes the metadata in AT file  10 . 
     For example, in the example as shown in metadata  14   a  in  FIG. 4 , it is understood that the GPS information was obtained at 12:50:30 on the tenth of April in 2018 or before/after that time. That is, the position of the wearable camera at 12:50:30 on the tenth of April in 2018 or before/after that time is understood. In addition, it is understood that the Patlite is turned on at 12:50:30 on the tenth of April in 2018 or before/after that time. 
     Images  15   a ,  15   b  show still images of the video file at the date and times shown by time stamps  11   a ,  11   b . Server  3  extracts, for example, images  15   a ,  15   b  of the video file at the times shown by time stamps  11   a ,  11   b  and includes images  15   a ,  15   b  of the video file in AT file  10 . 
     Server  3  transmits, as explained in  FIG. 1 , when AT file  10  of the video file is generated, AT file  10  of the video file to server  2 . Server  2  stores AT file  10  transmitted from server  3  in the folder. 
     The user can browse AT file  10  stored in server  2  by using terminal apparatus  1 . In addition, the user can reproduce the video picture from the times shown by time stamps  11   a ,  11   b  by clicking time stamps  11   a ,  11   b  of AT file  10  displayed on the display of terminal apparatus  1 . 
       FIG. 5A  and  FIG. 5B  are diagrams explaining an example of an operation of reproducing a moving picture from AT file  10 . In  FIG. 5A , components identical to those in  FIG. 4  are referred to as identical reference signs. 
     AT file  10  is displayed on the display of terminal apparatus  1 . Time stamps  11   a ,  11   b  of AT file  10  displayed on the display of terminal apparatus  1  are linked to the video file stored in the same folder as AT file  10 . Time stamps  11   a ,  11   b  are linked such that the video pictures of the video file are reproduced from the times shown by time stamps  11   a ,  11   b.    
     For example, when time stamp  11   a  displayed on the display of terminal apparatus  1  is clicked, server  2  stream-reproduces the video picture of the video file on the display of terminal apparatus  1  from the time shown at time stamp  11   a . For example, a moving image as shown in  FIG. 5B  is displayed on the display of terminal apparatus  1 . 
     A user refers to texts  13   a ,  13   b , metadata  14   a ,  14   b , and images  15   a ,  15   b  in AT file  10 , making it possible to reproduce the video file from a desired location for viewing the video picture. For example, when the user desires to view a video picture from a location where the criminal escapes, the user views metadata  14   b  of “dash detection” or image  15   b  showing the state where the criminal dashes, the user is only required to click time stamp  11   b.    
     Server  2  may stream-reproduce the video file on the display of terminal apparatus  1  from a short time before the time shown at time stamp  11   a  (for example, from 10 seconds before). Consequently the user can view how the situations and the like at the times of time stamps  11   a ,  11   b  have occurred. 
       FIG. 6  is a diagram showing a block configuration example of terminal apparatus  1 . As shown in  FIG. 6 , terminal apparatus  1  includes central processing unit (CPU)  21 , random access memory (RAM)  22 , hard disk drive (HDD)  23 , communication interface  24 , user interface  25 , and bus  26 . 
     Entire terminal apparatus  1  is controlled by CPU  21 . CPU  21  functions as controller  21   a  by executing programs. RAM  22 , HDD  23 , communication interface  24 , and user interface  25  are connected to CPU  21  via bus  26 . 
     Programs of an operation system (OS) and application programs to be executed by CPU  21  are temporarily stored in RAM  22 . Further, various kinds of data required for processing by CPU  21  are temporarily stored in RAM  22 . 
     The OS, application programs, and the like are stored in HDD  23 . 
     Communication interface  24  makes communications with servers  2 ,  3  via the network. 
     For example, a key board apparatus, a display, and the like are connected to user interface  25 . CPU  21  makes exchange of data with the key board apparatus, the display, and the like via user interface  25 . 
       FIG. 7  is a diagram showing a block configuration example of server  2 . As shown in  FIG. 7 , server  2  includes CPU  31 , RAM  32 , HDD  33 , communication interface  34 , and bus  35 . 
     Entire server  2  is controlled by CPU  31 . CPU  31  functions as controller  31   a  by executing programs. RAM  32 , HDD  33 , and communication interface  34  are connected to CPU  31  via bus  35 . 
     Programs of an OS and application programs to be executed by CPU  31  are temporarily stored in RAM  32 . Further, various kinds of data required for processing by CPU  31  are temporarily stored in RAM  32 . 
     The OS, the application programs, and the like are stored in HDD  33 . A video file of the video picture shot by a wearable camera attached to a user and an on-vehicle camera mounted on a police vehicle is stored in HDD  33 . The AT file generated by server  3  is stored in HDD  33 . In addition, a general-purpose file generated based on the AT file is stored in HDD  33 . 
     Communication interface  34  makes communications with terminal apparatus  1  and server  3  via a network. Further, communication interface  34  makes communications with the wearable camera attached to the user and the on-vehicle camera mounted on the police vehicle via the network. 
     Server  2  may be provided with a user interface. A key board apparatus, a display, and the like may be connected to the user interface. 
       FIG. 8  is a diagram showing a block configuration example of server  3 . As shown in  FIG. 8 , server  3  includes CPU  41 , RAM  42 , HDD  43 , communication interface  44 , and bus  45 . 
     Entire server  3  is controlled by CPU  41 . CPU  41  functions as controller  41   a  by executing programs. RAM  42 , HDD  43 , and communication interface  44  are connected to CPU  41  via bus  45 . 
     Programs of an OS and application programs to be executed by CPU  41  are temporarily stored in RAM  42 . Further, various kinds of data required for processing by CPU  41  are temporarily stored in RAM  42 . 
     The programs of the OS, the application programs, and the like to be executed by CPU  41  are stored in HDD  43 . 
     Communication interface  44  makes communications with terminal apparatus  1  and server  2  via the network. 
     Server  3  may be provided with a user interface. For example, the key board apparatus, the display, and the like may be connected to the user interface. 
     Hereinafter, an explanation will be made of an operation example of the document production system by using screen examples to be displayed on the display of terminal apparatus  1  and a sequence diagram of the document production system. 
     The operation of the document production system is largely separated into two operations. A first operation is an operation of generating the AT file as shown in  FIG. 4 , for example. A second operation is an operation of generating a predetermined file (data) based on the AT file generated by the first operation, and is separated into two operations. 
     A first operation of the second operation (operation 2-1) is an operation of generating a report that can be browsed by a general-purpose application. A second operation (operation 2-2) is an operation of generating an AT file extracted in a partial range from the AT file. The range of the AT file to be extracted can be designated by a user. 
     Hereinafter, the operation 2-1 may be called a report generation operation. The operation 2-2 may be called an export operation. The AT file extracted in the partial range from the AT file may be called an export file. 
     &lt;First Operation: Generation Operation of AT File&gt; 
       FIG. 9A ,  FIG. 9B , and  FIG. 9C  are diagrams showing screen examples in the generation operation of the AT file. The screen examples to be explained hereinafter may be displayed in a browser. “Return” buttons displayed on the screen examples to be hereinafter explained have a common function in the respective screen examples, and when the return button is clicked, the screen returns back to the previous screen by one screen. 
     Screen  51   a  as shown in  FIG. 9A  is a screen for retrieving a case. Controller  31   a  of server  2  displays screen  51   a  on the display of terminal apparatus  1  in response to access from terminal apparatus  1 . A user inputs information of a desired case of generating an AT file in a text box displayed on screen  51   a.    
     In an example of screen  51   a , the case number [NJ180425000011003] of the desired case of generating the AT file is input in the text box of the case number. When the user does not know the case number of the desired case of generating the AT file, for example, it is possible to retrieve the desired case of generating the AT file by inputting at least one of the date when the case occurs, the case type, the police officer name, and the police station name in the text box. 
     Screen  51   b  as shown in  FIG. 9B  shows a screen example of the retrieval result. Screen  51   b  is displayed on the display of terminal apparatus  1  when retrieval information is input in the text box of screen  51   a  in  FIG. 9A  and “retrieval” button is clicked. 
     For example, when the “retrieval” button on screen  51   a  as shown in  FIG. 9A  is clicked, controller  21   a  of terminal apparatus  1  transmits information input to the text box to server  2 . Controller  31   a  of server  2  retrieves the case based on the information that is input to the text box and is transmitted from terminal apparatus  1 . When controller  31   a  of terminal apparatus  1  retrieves the case, screen  51   b  as shown in  FIG. 9B  is displayed on the display of terminal apparatus  1 . 
     The case number [NJ180425000011003] of the retrieved case is displayed on screen  51   b . Information (type list) of the files stored in the folder of the retrieved case is displayed on screen  51   b.    
     For example, “ICV video”, “BWC video”, “handwritten memorandum”, and “site photograph” of screen  51   b  show types of the files stored in the folder of the retrieved case. For example, “ICV video” means a video file shot by the on-vehicle camera mounted on the police vehicle. “BWC video” means a video file shot by the wearable camera attached to a user. 
     Radio buttons are displayed on screen  51   b . A user selects a radio button corresponding to a desired file for generating an AT file. For example, in a case where the user is desired to generate an AT file of a video file of “ICV video”, the user selects a radio button corresponding to “ICV video”. In addition, in a case where the user is desired to generate an AT file of a video file of “BWC video”, the user selects a radio button corresponding to “BWC video”. 
     Screen  51   c  as shown in  FIG. 9C  shows a screen example after a desired file for generating an AT file is selected. “BWC video” is selected on screen  51   c.    
     When “convert into text from voice” button as shown on screen  51   c  is clicked, controller  21   a  of terminal apparatus  1  transmits information (in an example of screen  51   c , information of “BWC video”) of the file selected with the radio button by the user to server  2 . 
     When controller  31   a  of server  2  receives the information of the file selected with the radio button by the user from terminal apparatus  1 , controller  31   a  of server  2  transmits a copy of the file corresponding to the received information to server  3 . Since in the example of screen  51   c , “BWC video” is selected, controller  31   a  of server  2  transmits a copy of a video file of the wearable camera to server  3 . 
     When controller  41   a  of server  3  receives the video file transmitted from server  2 , controller  41   a  of server  3  extracts voice data and converts the extracted voice data into text data. Controller  41   a  of server  3  generates, for example, an AT file as shown in  FIG. 4 . When controller  41   a  of server  3  generates the AT file, controller  41   a  of server  3  transmits the generated AT file to server  2 . 
     When controller  31   a  of server  2  receives the AT file from server  3 , controller  31   a  of server  2  stores the received AT file in the folder in which the video file transmitted to server  3  is stored. Consequently the video file and the AT file of the video file are linked (stored in the folder of the same case) to be managed. 
     Thereby, a user accesses the folder of the case managed by server  2 , making it possible to browse the AT file. 
       FIG. 10  is a sequence diagram showing an AT file generation operation example of the document production system. Controller  21   a  of terminal apparatus  1  accesses server  2  in response to an operation of a user. Controller  31   a  of server  2  displays a screen for retrieving a case on the display of terminal apparatus  1  in response to the access from terminal apparatus  1  (for example, refer to screen  51   a  in  FIG. 9A ). The user inputs retrieval information of a desired case for generating an AT file on the retrieval screen of the display of terminal apparatus  1 . 
     Controller  21   a  of terminal apparatus  1  transmits the retrieval information input by the user to server  2  (step S 11 ). 
     Controller  31   a  of server  2  refers to HDD  33  to retrieve the case based on the retrieval information received in step S 11  (step S 12 ). 
     Controller  31   a  of server  2  displays type information (for example, refer to screen  51   b  in  FIG. 9B ) of files (for example, a video file, a voice file, an image file of a memorandum, and the like) stored in the folder of the case retrieved in step S 12 , on the display of terminal apparatus  1  (step S 13 ). 
     The user selects a file of generating an AT file on the screen in step S 13  (for example, selects a radio button on screen  51   b  in  FIG. 9B ). 
     Controller  21   a  of terminal apparatus  1  transmits information (for example, information of BWC video selected with the radio button on screen  51   c  in  FIG. 9C ) of the file of generating the AT file that is selected (designated) by the user to server  2  (step S 14 ). 
     Controller  31   a  of server  2  obtains a file (video file) corresponding to the information of the file transmitted in step S 14  from HDD  33 , and transmits a copy of the obtained video file to server  3  (step S 15 ). 
     Controller  41   a  of server  3  converts voices included in the video file transmitted in step S 15  into text (step S 16 ). 
     Controller  41   a  of server  3  transmits an AT file including the data converted into text to server  2  (step S 17 ). 
     Controller  31   a  of server  2  links the AT file transmitted in step S 17  to the video file (the video file transmitted in step S 15 ) as a generation source of the AT file to be stored in HDD  33  (step S 18 ). For example, controller  31   a  of server  2  stores the AT file in the folder in which the video file as the generation source of the AT file is stored. 
     Consequently the user accesses, for example, the folder of the case managed by server  2 , making it possible to browse the AT file. 
     &lt;Operation 2-1: Report Generation Operation&gt; 
       FIG. 11A ,  FIG. 11B ,  FIGS. 11C, and 11D  are diagrams showing screen examples in terminal apparatus  1  in the report generation operation. 
     Screen  52   a  as shown in  FIG. 11A  shows a screen example after the retrieval of the case. For example, as explained in  FIG. 9A , Screen  52   a  is displayed when retrieval information is input in the text box and “retrieval” button is clicked. 
     The case number [NJ180425000011003] of the retrieved case is displayed on screen  52   a . A type list of the files stored in the folder of the retrieved case is displayed on screen  52   a.    
     File information of “data converted into text from voice” is added to screen  52   a , which is different from screen  51   b  of the retrieval result as shown in  FIG. 9B . In other words, since the AT file is generated in the case of the case number [NJ180425000011003], the file information of “data converted into text from voice” is added to screen  52   a.    
     Radio buttons are displayed on screen  52   a . A user selects a radio button corresponding to a file that the user is desired to browse or view. 
     For example, in a case where the user is desired to browse “data converted into text from voice” (that is, in a case where the user is desired to browse the AT file generated in server  3 ) the user selects a radio button corresponding to “data converted into text from voice”. 
     Screen  52   b  as shown in  FIG. 11B  shows a screen example after selecting a desired file for browsing or viewing. “Data converted into text from voice” is selected on screen  52   b.    
     When “browsing” button as shown on screen  52   b  is clicked, controller  21   a  of terminal apparatus  1  transmits information (in an example of screen  52   b , information of “data converted into text from voice”) of the file selected with the radio button by the user, to server  2 . 
     When controller  31   a  of server  2  receives the information of the file selected with the radio button by the user from terminal apparatus  1 , controller  31   a  of server  2  transmits data of the file corresponding to the received information to terminal apparatus  1 . Since in the example of screen  52   b , “data converted into text from voice” is selected, controller  31   a  of server  2  obtains an AT file stored in the folder of the retrieved case and transmits the AT file to terminal apparatus  1 . Controller  21   a  of terminal apparatus  1  displays the AT file transmitted from server  2  on the display. 
     Screen  52   c  as shown in  FIG. 11C  shows a screen example on which the AT file is displayed. The content of the AT file as explained in  FIG. 4  is displayed on screen  52   c , for example. 
     In a case where the user is desired, for example, to confirm the content of the AT file displayed on screen  52   c  and generate a report based on the confirmed content of the AT file, the user clicks “report production” button. 
     Controller  21   a  of terminal apparatus  1  transmits the information to which “report production” button is clicked to server  2 . When controller  31   a  of server  2  receives the click information of “report production” button from terminal apparatus  1 , controller  31   a  of server  2  transmits a screen for causing the user to select an output format and an output content of the report to be generated to terminal apparatus  1 . Controller  21   a  of terminal apparatus  1  displays the information of the screen transmitted from server  2  on the display. 
     Screen  52   d  as shown in  FIG. 11D  shows a screen example on which the output format and the output content of the report are selected. For example, a pulldown menu for selecting the output format of the report is displayed on screen  52   d . The user can select the output format of the report from the pulldown menu on screen  52   d.    
     A check box for selecting information (output content) included in the report is displayed on screen  52   d . In the example of screen  52   d , metadata, a still image, and a time stamp link are included. 
     In a case where the metadata is selected, a text of the metadata is included in the report (for example, metadata  14   a ,  14   b  in  FIG. 4  is included). In a case where the still image is selected, the still image when a speaker utters voices is included in the report (for example, images  15   a ,  15   b  in  FIG. 4  are included). In a case where the time stamp link is selected, a link of the time stamp is included in the report (for example, refer to time stamps  11   a ,  11   b  in  FIG. 4 ). 
     A plurality of pieces of information as information to be included in the report can be selected in accordance with the output format of the report to be selected in the pulldown menu. For example, when the output format of WORD or EXCEL (for example, “*.doc” or “*.xls” in the pulldown menu) is selected, it is possible to select the metadata, the still image, and the time stamp link. When the text (“*.txt” in the pulldown menu) is selected as the output format of the report, the still image and the time stamp link cannot be selected. 
     When “start” button on screen  52   d  is clicked, controller  21   a  of terminal apparatus  1  transmits the information input on screen  52   d  to server  2 . Controller  31   a  of server  2  generates a report based on the information transmitted from terminal apparatus  1 . 
     For example, in a case where the still image and the time stamp link are selected as the output content of the report, controller  31   a  of server  2  deletes the metadata from the data in the AT file to generate the report. In addition, in a case where “*.doc” is selected as the report output format, controller  31   a  of server  2  generates the report as “doc” file. 
       FIG. 12  is a sequence diagram showing a report generation operation example of the document production system. The user uses terminal apparatus  1  to input retrieval information for retrieving a desired case for producing a report. 
     Controller  21   a  of terminal apparatus  1  transmits the retrieval information input by the user to server  2  (step S 21 ). 
     Controller  31   a  of server  2  refers to HDD  33  to retrieve a case based on the retrieval information received in step S 21  (step S 22 ). 
     Controller  31   a  of server  2  displays type information (for example, refer to screen  52   a  in  FIG. 11A ) of the files (for example, a video file, a voice file, an image file of a memorandum, and the like) stored in the folder of the case retrieved in step S 22 , on the display of terminal apparatus  1  (step S 23 ). 
     The user selects a file for generating a report on the screen in step S 23 . The user selects an AT file as the file for generating the report (for example, selects a radio button corresponding to “data converted into text from voice” on screen  52   b  in  FIG. 11B ). 
     Controller  21   a  of terminal apparatus  1  transmits the information (information of having selected the data converted into text from voice) selected by the user to server  2  (step S 24 ). 
     Controller  31   a  of server  2  displays the image (for example, refer to screen  52   c  in  FIG. 11C ) of the file (AT file) of the information that is selected by the user and is transmitted in step S 24 , on the display of terminal apparatus  1  (step S 25 ). 
     The button of the report production as well as the AT file are displayed on the display of terminal apparatus  1  (for example, refer to “report production” button on screen  52   c  in  FIG. 11C ). When “report production” button is clicked, controller  31   a  of server  2  displays a screen for selecting the output format and the output content of the report, on the display of terminal apparatus  1  (for example, refer to screen  52   d  in  FIG. 11D ). The user selects the output format and the output content of the report according to the screen of the display of terminal apparatus  1 . 
     Controller  21   a  in terminal apparatus  1  transmits the output format and the output content of the report selected by the user to server  2  (step S 26 ). 
     Controller  31   a  of server  2  edits data of the AT file based on the output format and the output content of the report transmitted in step S 26  to generate the report (step S 27 ). For example, in a case where the still image and the time stamp are selected as the output content of the report, controller  31   a  of server  2  deletes the metadata from the data in the AT file to generate the report. In addition, in a case where “*. doc” is selected as the report output format, controller  31   a  of server  2  generates the report as “doc” file. 
     Controller  31   a  of server  2  links the report generated in step S 27  to the AT file (the AT file transmitted in step S 24 ) to store the report in HDD  33  (step S 28 ). For example, controller  31   a  of server  2  stores the report in the folder in which the AT file as the source of the report generation is stored. 
     Consequently the user accesses, for example, the folder of the case managed by server  2 , making it possible to browse the report. The user can edit the generated report. 
     &lt;Operation 2-2: Export Operation&gt; 
       FIG. 13A ,  FIG. 13B ,  FIG. 13C , and  FIG. 13D  are diagrams showing screen examples in terminal apparatus  1  in the export operation. 
     Screen  53   a  as shown in  FIG. 13A  shows a screen example after a desired file for browsing or viewing is selected. Screen  53   a , for example, corresponds to screen  52   c  as explained in  FIG. 11C . 
     For example, screen  53   a  shows a screen example on which after the case is retrieved by server  2 , information of files in the folder of the retrieved case is displayed on the display of terminal apparatus  1 , and a desired file for browsing or viewing is selected by the user. The content of the AT file as explained in  FIG. 4  is displayed on screen  53   a.    
     Time stamps  53   aa ,  53   ab  are displayed on screen  52   a . Time stamps  53   aa ,  53   ab  are linked with the video file as the source of the AT file. When time stamps  53   aa ,  53   ab  on screen  52   a  are clicked, controller  31   a  of server  2  displays a video reproduction screen on the display of terminal apparatus  1 . Controller  31   a  of server  2  displays the video reproduction screen on which video reproduction is made possible from times shown at time stamps  53   aa ,  53   ab  or from times prior to those times by a small amount (these times may be set by the user). 
     Screen  53   b  as shown in  FIG. 13B  shows a screen example in a case where time stamp  53   aa  on screen  53   a  is clicked. When time stamp  53   aa  is clicked, controller  21   a  of terminal apparatus  1  transmits link information linked with time stamp  53   aa  to server  2 . 
     When controller  31   a  of server  2  receives the link information from terminal apparatus  1 , controller  31   a  of server  2  displays the video reproduction screen on the display of terminal apparatus  1  based on the link information. The user can make operations of reproduction, temporal stop, stop, fast-forward, quick return, and the like of a video on the display of terminal apparatus  1 . 
     The user clicks, for example, one or more of time stamps to view the video. The user views the video, and as a result, designates a range of a desired video picture for export from the video file on the display of terminal apparatus  1 . 
     For example, the user designates a start time of a desired video for export on the display of terminal apparatus  1 . The user designates an end time of the desired video for export on the display of terminal apparatus  1 . 
     Screen  53   c  as shown in  FIG. 13C  shows a screen example on which the export range is input. In the example of screen  53   c, “ 12:25” is input in a text box of “start time” for starting the export. In the example of screen  53   c, “ 12:32” is input in a text box of “end time” for ending the export. 
     For example, when a desired video picture for starting the export is displayed during the browsing of the video, the user may click “selection” button on screen  53   c . Controller  21   a  of terminal apparatus  1  may input a time in the video in the middle of reproduction in the text box of “start time” in response to the clicking of “selection” button. When “selection” button is next clicked, controller  21   a  of terminal apparatus  1  may input a time in the video in the middle of reproduction in the text box of “end time”. 
     When the export range of the video file is designated and “export” button is clicked, controller  21   a  of terminal apparatus  1  displays a screen for selecting the export content on the display. 
     Screen  53   d  as shown in  FIG. 13D  shows a screen example for selecting the export content (target). The user designates the content for export on the display of terminal apparatus  1 . The content for export includes metadata, a still image, and a time stamp link, for example. 
     The content for export may be all or partially selected. For example, in a case where the metadata and the still image are exported and the time stamp link is not exported, the user inputs checks to a check box corresponding to the metadata and a check box corresponding to the still image. 
     When the export range of the video file is designated and “start” button is clicked, controller  21   a  of terminal apparatus  1  transmits information of the export range input on screen  53   c  in  FIG. 13C  and information of the export content selected on screen  53   d  in  FIG. 13D  to server  2 . 
     Controller  31   a  of server  2  edits an AT file based on the information of the export range and the information of the export content transmitted from terminal apparatus  1 . For example, controller  31   a  of server  2  deletes a video content out of the export range and information other than the information designated in the export content to generate an AT file. 
       FIG. 14  is a sequence diagram showing an export operation example of the document production system. The user uses terminal apparatus  1  to input retrieval information for retrieving a desired case for producing an export file. 
     Controller  21   a  of terminal apparatus  1  transmits the retrieval information input by the user to server  2  (step S 31 ). 
     Controller  31   a  of server  2  refers to HDD  33  to retrieve a case based on the retrieval information received in step S 31  (step S 32 ). 
     Controller  31   a  of server  2  displays type information (for example, refer to screen  52   a  in  FIG. 11A ) of files (for example, a video file, a voice file, an image file of a memorandum, an AT file, and the like) stored in the folder of the case retrieved in step S 32 , on the display of terminal apparatus  1  (step S 33 ). 
     The user selects an AT file (data converted into text from voice) for generating an export file on the screen in step S 33  (for example, the user selects a radio button corresponding to “data converted into text from voice” on screen  52   b  in  FIG. 11B ). 
     Controller  21   a  of terminal apparatus  1  transmits the information (information where the AT file is selected) that is selected by the user to server  2  (step S 34 ). 
     Controller  31   a  of server  2  displays a content (for example, refer to screen  53   a  in  FIG. 13A ) of the file (AT file) of the information that is selected by the user and is transmitted in step S 34 , on the display of terminal apparatus  1  (step S 35 ). 
     The time stamp is displayed on the AT file to be displayed on the display of terminal apparatus  1  (for example, time stamps  53   aa ,  53   ab  on screen  53   a  in  FIG. 13A ). 
     When the time stamp is clicked, controller  31   a  of server  2  transmits information of the clicked time stamp to server  2  (step S 36 ). 
     When controller  31   a  of server  2  receives the information of the time stamp, controller  31   a  of server  2  reproduces the video file from a location linked with the time of the time stamp and displays the video file on the display of terminal apparatus  1  (for example, refer to screen  53   b  in  FIG. 13B ) (step S 37 ). 
     The user views a video displayed on the display of terminal apparatus  1  and can designate a desired range for producing the export file. For example, the user can designate a desired range for producing the export file based on the time within the video picture (for example, refer to a start time and an end time on screen  53   c  in  FIG. 13C ). The user makes operations of reproduction, quick return, and the like of the video to repeatedly view the video, making it possible to designate the desired range for producing the export file. Further, the user clicks another time stamp to reproduce a video picture in another time, making it possible to view the video picture. 
     The user selects the export content on the display of terminal apparatus  1 . For example, the user selects the metadata, the still image, and the time stamp link as the content to be included in the export file (refer to the check box on screen  53   d  in  FIG. 13D ). 
     Controller  21   a  of terminal apparatus  1  transmits the export range and the export content designated by the user to server  2  (step S 38 ). 
     Controller  31   a  of server  2  generates an export file based on the export range and the export content transmitted in step S 38  (step S 39 ). 
     Controller  31   a  of server  2  links the export file generated in step S 39  with the AT file to store the export file in HDD  33  (step S 40 ). For example, controller  31   a  of server  2  stores the export file in the folder in which the AT file as the source of the export file is stored. 
     As explained above, controller  31   a  of server  2  configuring the information processing apparatus obtains the video file designated by terminal apparatus  1  from HDD  33  in which the video file of the video picture shot by the wearable camera attached to or owned by the police officer or by the on-vehicle camera mounted on the police vehicle is stored. Controller  41   a  of server  3  configuring the information processing apparatus extracts the voice data included in the video file obtained by server  2  and converts the extracted voice data into the text data. Communication interface  34  of server  2  configuring the information processing apparatus transmits the AT file including text data converted in server  3  to terminal apparatus  1 . In this way, since the information processing apparatus generates the text data from the video file of the video picture shot by the wearable camera attached to the police officer or by the on-vehicle camera mounted on the police vehicle, the production of the report associated with the case by the user is made easy. 
     In the above description, controller  41   a  of server  3  converts the voice data of the video file into the text data, but is not limited thereto. For example, controller  41   a  of server  3  may convert the voice data in the voice file into the text data. For example, a voice file recorded by an IC recorder or the like may be stored in HDD  33  of server  2 . In a case where the user designates the voice file as the data for producing the AT file, controller  31   a  of server  2  transmits the designated voice file to server  3 . Controller  41   a  of server  3  may convert the voice data transmitted from server  2  into the text data and transmit the AT file including the converted text data to server  2 . 
     In the above description, the metadata is added to the video data in the video file, but is not limited thereto. The metadata may be managed by a file different from the video file. In this case, controller  31   a  of server  2  transmits the video file (to which the metadata is not added) and the file of the metadata to server  3 . Controller  41   a  of server  3  generates an AT file based on the video file and the file of the metadata transmitted from server  2 . 
     In the above description, controller  31   a  of server  2  generates the report from the AT file, but may generate the report from the export file. For example, in a case where the export file is generated, the file type showing the export file and the radio button for being capable of selecting the export file are displayed on screen  52   a  in  FIG. 11A . In a case where the radio button of the export file is selected, controller  31   a  of server  2  generates a report from the export file. 
     In a case where the time stamp is clicked on screen  52   c  in  FIG. 11C , controller  31   a  of server  2  may display the reproduction screen of the video file on the display of terminal apparatus  1  as similar to screen  53   c  in  FIG. 13C . 
     Embodiment 2 
     In Embodiment 2, a summary video file is generated from a video file of a video picture shot by a camera. For example, in some cases a portion that becomes important as a case (for example, a portion as a report target) is a part of the video picture shot by a camera. Therefore in Embodiment 2, a portion that becomes important as the report target is extracted out of the video picture shot by the camera, and a summary video file including the extracted video picture is generated. 
       FIG. 15  is a diagram showing an example of a summary video generation system according to Embodiment 2. In  FIG. 15 , components identical to those in  FIG. 1  are referred to as identical reference signs. The summary video generation system includes terminal apparatus  1  and servers  2 ,  61 ,  62 . 
     Hereinafter, portions different from those in  FIG. 1  will be explained.  FIG. 15  shows terminal apparatus  1  and server  2  as shown in  FIG. 1 , and besides servers  61 ,  62 . Terminal apparatus  1 , server  2 , server  61 , and server  62  can communicate with each other through a network, for example, a LAN or the Internet. 
     Functions of servers  2 ,  61 ,  62  may be realized by a single or two servers. The functions of servers  2 ,  61 ,  62  may be realized by four or more servers. Servers  2 ,  61 ,  62  may be assumed as a single information processing apparatus. That is, the information processing apparatus may be assumed to be configured of servers  2 ,  61 ,  62 . The information processing apparatus may be configured of one or more servers. 
     Server  61  generates an intelligent metafile. Intelligent metadata is included in the intelligent metafile. Hereinafter, the intelligent metafile may be called an intelli-metafile. In addition, the intelligent metadata may be called an intelli-metadata. Server  61  may be provided with a function of an artificial intelligence (AI). 
     The intelli-metadata is, as similar to the metadata explained in  FIG. 2 , information on an event that occurs associated with a case. The metadata is generated by a camera and is added to the video file, and on the other hand, the intelli-metadata is generated by server  61 . 
     Server  2  transmits a video file as a generation source of the intelli-metafile to server  61 . Server  61  analyzes a video picture (including voices) transmitted from server  2  to generate intelli-metadata and an intelli-metafile. 
     A wearable camera or an on-vehicle camera is limited in processing capabilities more than the server. Therefore the metadata to be added to the video file is limited to, for example, the information shown in  FIG. 2 . Therefore server  61  receives a video file of a video picture shot by a camera from server  2  and analyzes the video picture to generate intelli-metadata (for example, refer to  FIG. 16 ). That is, server  61  generates the metadata (intelli-metadata) that a camera cannot generate. Server  61  transmits an intelli-metafile including the generated intelli-metadata to server  2 . 
     Server  2  manages, for example, as explained also in  FIG. 1 , folders separated for respective cases. Server  2  stores the intelli-metafile transmitted from server  61  in the folder separated for each case. For example, server  2  stores the intelli-metafile in the same folder as the video file as the generation source of the intelli-metafile. 
     Server  62  generates a summary video file in which a video picture of a video file is summarized. For example, server  62  receives a copy of the video file as a source of the summary video file and an intelli-metafile of the video file from server  2 . Server  62  refers to the intelli-metafile received from server  2  and extracts a video picture as a report target from the video file received from server  2  to generate a summary video file. 
     Server  62  transmits the generated summary video file to server  2 . Server  2  stores the summary video file transmitted from server  62  in the same folder as the video file as the source of the summary video file. 
     An explanation will be made of a schematic operation example of the summary video generation system in  FIG. 15 . For example, a user as a police officer uses terminal apparatus  1  to select (retrieve) a desired case for generating a summary video. Herein it is assumed that the user selects case A as a desired case for generating the summary video. Terminal apparatus  1  transmits information of selected case A to server  2  (step S 51 ). 
     When server  2  receives the information of case A transmitted from terminal apparatus  1 , server  2  obtains a video file from a folder corresponding to case A. Server  2  transmits a copy of the obtained video file to server  61  (step S 52 ). The metadata (for example, refer to  FIG. 2 ) added by a camera is added to the video file. 
     Server  61  analyzes the video picture in the video file transmitted from server  2  to generate intelli-metadata and generate an intelli-metafile including the generated intelli-metadata. Server  61  transmits the generated intelli-metafile to server  2  (step S 53 ). 
     Server  2  stores the intelli-metafile of case A transmitted from server  61  in the folder of case A. Consequently the video file and the intelli-metafile of case A are stored (saved) in the folder of case A. 
     Server  2  transmits the intelli-metafile transmitted from server  61  and a copy (copy of the video file of case A) of the video file as a generation source of the intelli-metafile to server  62  (step S 54 ). 
     Server  62  refers to the intelli-metafile transmitted from server  2  to extract a video picture of a portion as a report target from the video file transmitted from server  2 , generating a summary video file. 
     Server  62  transmits the generated summary video file to server  2  (step S 55 ). 
     Server  2  stores the summary video file transmitted from server  62  in the folder of case A. Consequently the video file, the intelli-metafile, and the summary video file of case A are stored (saved) in the folder of case A of server  2 . 
     Server  2  displays the video picture of the summary video file transmitted from server  62  on the display of terminal apparatus  1  (step S 56 ). Consequently the user can browse the video picture in which the portion as the report target is extracted. 
     In this way, the summary video generation system analyzes the video picture in the video file to generate the intelli-metafile. The summary video generation system extracts the video picture of the portion as the report target from the video file based on the generated intelli-metafile to generate the summary video file. 
     Consequently the user can easily browse the video picture of the portion as the report target. For example, the user can eliminate time and effort for looking for the video picture of the portion as the report target to easily browse the video picture of the portion as the report target. Further, the user can generate the report explained in Embodiment 1 from the summary video file. That is, the user can easily generate a report of an important portion of a case. 
       FIG. 16  is a diagram explaining an example of the intelli-metadata. The intelli-metadata includes, for example, data as shown in  FIG. 16 . The intelli-metadata is generated by server  61  as explained in  FIG. 15 . 
     “Person detection/non-detection” of the intelli-metadata is generated when server  61  detects a person and does not detect a person for a constant time in the video picture of the video file. 
     “Vehicle detection/non-detection” of the intelli-metadata is generated when server  61  detects a vehicle and does not detect a vehicle for a constant time in the video picture of the video file. 
     “Abnormal behavior detection/non-detection” of the intelli-metadata is generated when server  61  detects an abnormal behavior of a person and does not detect an abnormal behavior of a person for a constant time in the video picture of the video file. 
     “Crowd of people detection/non-detection” of the intelli-metadata is generated when server  61  detects a crowd of people and does not detect a crowd of people for a constant time in the video picture of the video file. 
     “Conversation detection/non-detection” of the intelli-metadata is generated when server  61  detects a conversation and does not detect a conversation for a constant time in the video picture of the video file. 
     “Gunshot detection/non-detection” of the intelli-metadata is generated when server  61  detects a gunshot and does not detect a gunshot for a constant time in the video picture of the video file. 
     “Explosion sound detection/non-detection” of the intelli-metadata is generated when server  61  detects an explosion sound and does not detect an explosion sound for a constant time in the video picture of the video file. 
     “Constant time” as “does not detect for a constant time” as described above may be set by the user. 
       FIG. 17  is a diagram explaining a generation example of the intelli-metafile.  FIG. 17  shows a partial frame of the video picture shot by the wearable camera. A horizontal axis in  FIG. 17  shows time. 
     Server  61  analyzes a video picture in a video file to generate intelli-metadata. Server  61  associates the generated intelli-metadata with a time of the video picture as a generation source of the intelli-metadata to generate an intelli-metafile. 
     For example, at time t 2  server  61  is assumed to detect that a person disappears from the video picture in the video file. In this case, server  61  generates intelli-metadata (tag) of “person non-detection” to associate the intelli-metadata (tag) with time t 2 . In addition, at time t 2  server  61  is assumed to detect that the conversation disappears from the video picture in the video file. In this case, server  61  generates intelli-metadata of “conversation non-detection” to associates the intelli-metadata with time t 2 . Server  61  generates an intelli-metafile including the intelli-metadata associated with the time in the video picture in the video file. 
     Patlite ON, dash start, and manual record OFF as shown in  FIG. 17  are metadata added by a wearable camera. 
       FIG. 18  is a diagram explaining a generation example of a summary video file. Video data, a tag, metadata, and intelli-metadata as shown in  FIG. 18  are the same as the video data, the tag, the metadata, and the intelli-metadata as shown in  FIG. 17 .  FIG. 18  shows summary video data to  FIG. 17 . 
     Server  62  extracts a video picture of a portion as a report target from the video file based on the metadata included in the video file and the intelli-metadata included in the intelli-metafile to generate a summary video file. 
     For example, when Patlite is turned on, a case is assumed to occur. On the other hand, in a case where a person is not included and a conversation is not included in the video picture for a constant time after the Patlite is turned on, an important video picture as a report target of a case is assumed to be not included in the video picture after that. When a user (user wearing a wearable camera) starts to run, the important video picture as the report target of the case is assumed to be included. 
     Therefore server  62  forms, for example, as shown in arrows A 1  to A 3  in  FIG. 18 , video picture data (frame) to a tag of person non-detection and a tag of conversation non-detection (intelli-metadata) after a tag (metadata) of the Patlite ON as data (frame) of the summary video file. Server  62  deletes, for example, as shown in arrows A 4  to A 6  in  FIG. 18 , the video picture data after the tag of person non-detection and the tag of conversation non-detection. Further, server  62  forms, as shown in arrows A 7 , A 8  in  FIG. 18 , video picture data after a tag (metadata) of a dash start as data of the summary video file. 
       FIG. 19  is a diagram showing a block configuration example of server  61 . As shown in  FIG. 19 , server  61  includes CPU  71 , RAM  72 , HDD  73 , communication interface  74 , and bus  75 . 
     Entire Server  61  is controlled by CPU  71 . CPU  71  functions as controller  71   a  by executing programs. RAM  72 , HDD  73 , and communication interface  74  are connected to CPU  71  via bus  75 . 
     Programs of an OS and application programs to be executed by CPU  71  are temporarily stored in RAM  72 . Further, various kinds of data required for processing by CPU  71  are temporarily stored in RAM  72 . 
     The programs of the OS, the application programs, and the like to be executed by CPU  71  are stored in HDD  73 . 
     Communication interface  74  makes communications with server  2  via the network. 
     Server  61  may be provided with a user interface. For example, a key board apparatus, a display, and the like may be connected to the user interface. 
       FIG. 20  is a diagram showing a block configuration example of server  62 . As shown in  FIG. 20 , server  62  includes CPU  81 , RAM  82 , HDD  83 , communication interface  84 , and bus  85 . 
     Entire Server  62  is controlled by CPU  81 . CPU  81  functions as controller  81   a  by executing programs. RAM  82 , HDD  83 , and communication interface  84  are connected to CPU  81  via bus  85 . 
     Programs of an OS and application programs to be executed by CPU  81  are temporarily stored in RAM  82 . Further, various kinds of data required for processing by CPU  81  are temporarily stored in RAM  82 . 
     The programs of the OS, the application programs, and the like to be executed by CPU  81  are stored in HDD  83 . 
     Communication interface  84  makes communications with server  2  via a network. 
     Server  62  may be provided with a user interface. For example, a key board apparatus, a display, and the like may be connected to the user interface. 
     Hereinafter, an explanation will be made of an operation example of the summary video generation system by using screen examples to be displayed on the display of terminal apparatus  1  and a sequence diagram of the summary video generation system. 
     The operation of the summary video generation system is largely separated into two operations. A first operation is an operation of generating an intelli-metafile including intelli-metadata and generating the summary video file (summary video data) as shown in  FIG. 18 . A second operation is an operation of utilizing the summary video file generated by the first operation, and is separated into three operations. 
     A first operation of the second operation (operation 2-1) is an operation of browsing the summary video file. A second operation (operation 2-2) is an operation of generating a summary video file extracted in a partial range from the summary video file. A third operation (operation 2-3) is an operation of generating an AT file from the summary video file. 
     Hereinafter, the operation 2-2 may be called an export operation. The summary video file extracted in a partial range from the summary video file may be called an export file. 
     &lt;First Operation: Generation Operation of Summary Video File&gt; 
       FIG. 21A ,  FIG. 21B ,  FIG. 21C , and  FIG. 21D  are diagrams showing screen examples of terminal apparatus  1  in the generation operation of the summary video file. 
     Screen  91   a  as shown in  FIG. 21A  is displayed when terminal apparatus  1  accesses server  2 , for example. Controller  31   a  of server  2  displays screen  91   a  on the display of terminal apparatus  1  in response to the access from terminal apparatus  1 . 
     Screen  91   a  is a screen for retrieving a case. The user inputs information of a desired case for generating a summary video file in a text box displayed on screen  91   a , thereby making it possible to retrieve the desired case for generating the summary video file. 
     In an example of screen  91   a , the case number [NJ180425000011003] of a desired case for generating a summary video file is input in a text box of the case number. When the user does not know the case number of the desired case for generating the summary video file, for example, it is possible to retrieve the desired case for generating the summary video file by inputting at least one of the date when the case occurs, the case type, the police officer name, and the police station name in the text box. 
     Screen  91   b  as shown in  FIG. 21B  shows a screen example of the retrieval result. Screen  91   b  is displayed on the display of terminal apparatus  1  when retrieval information is input in the text box of screen  91   a  in  FIG. 21A  and the “retrieval” button is clicked. 
     For example, when the “retrieval” button on screen  91   a  as shown in  FIG. 21A  is clicked, controller  21   a  of terminal apparatus  1  transmits the information input to the text box to server  2 . Controller  31   a  of server  2  retrieves the desired case for the user to generate the summary video file, based on the information that is input to the text box and is transmitted from terminal apparatus  1 . When controller  31   a  of server  2  retrieves the case, screen  91   b  as shown in  FIG. 21B  is displayed on the display of terminal apparatus  1 . 
     The case number [NJ180425000011003] of the retrieved case is displayed on screen  91   b . A type list of the files stored in a folder of the retrieved case is displayed on screen  91   b.    
     For example, “ICV video”, “BWC video”, “handwritten memorandum”, and “site photograph” of screen  91   b  show types of the files stored in the folder of the retrieved case. For example, “ICV video” means a video file shot by the on-vehicle camera mounted on the police vehicle. “BWC video” means a video file shot by the wearable camera attached to a user. 
     Radio buttons are displayed on screen  91   b . A user selects a radio button corresponding to a desired file for generating a summary video file. For example, in a case where the user is desired to generate a summary video file of a video file of “ICV video”, the user selects a radio button corresponding to “ICV video”. In addition, in a case where the user is desired to generate a summary video file of a video file of “BWC video”, the user selects a radio button corresponding to “BWC video”. 
     Screen  91   c  as shown in  FIG. 21C  shows a screen example after a desired file for generating the summary video file is selected. “BWC video” is selected on screen  91   c.    
     When “video summary” button as shown on screen  91   c  is clicked, controller  21   a  of terminal apparatus  1  transmits information (in an example of screen  91   c , information of “BWC video”) of the file selected with the radio button by the user to server  2 . 
     When controller  31   a  of server  2  receives the information of the file selected with the radio button by the user from terminal apparatus  1 , controller  31   a  of server  2  transmits a copy of the file corresponding to the received information to server  61 . Since in the example of screen  91   c , “BWC video” is selected, controller  31   a  of server  2  transmits a copy of the video file of the wearable camera to server  61 . 
     When controller  71   a  of server  61  receives the video file transmitted from server  2 , controller  71   a  of server  61  analyzes a video picture of the received video file to generate intelli-metadata and generates an intelli-metafile. When controller  71   a  of server  61  generates the intelli-metafile, controller  71   a  of server  61  transmits the generated intelli-metafile to server  2 . 
     When server  2  receives the intelli-metafile from server  61 , server  2  stores the intelli-metafile in the folder in which the video file transmitted to server  61  is stored. Consequently the video file and the intelli-metafile of the video file are linked (stored in the folder of the same case) to be managed. When controller  31   a  of server  2  stores the intelli-metafile received from server  61  in the folder, controller  31   a  of server  2  displays a screen on whether to display the metadata and the intelli-metadata in the video picture of a summary video file to be generated, on the display of terminal apparatus  1 . 
     Screen  91   d  as shown in  FIG. 21D  shows a screen example after the intelli-metafile is stored in HDD  33  of server  2 . As shown on screen  91   d , check boxes, for selection of causing the metadata or the intelli-metadata to be displayed in the video picture of a summary video file to be generated, are displayed on the display of terminal apparatus  1 . 
     The user, for example, in a case of desiring to display a text of the metadata in the video picture of the summary video file to be generated, selects a check box corresponding to the metadata. In addition, the user for example, in a case of desiring to display a text of the intelli-metadata in the video picture of the summary video file to be generated, selects a check box corresponding to the intelli-metadata. The user can select both or any one of the metadata and the intelli-metadata. Further, the user may not select both of the metadata and the intelli-metadata. 
     In a case where the metadata is selected, the metadata is displayed in text in the video picture of the summary video file at time when the metadata is added, for example. For example, in a case where Patlite is turned on in a certain time, a text of “Patlite ON” is displayed in a certain time in the video picture of the summary video file. 
     In a case where the intelli-metadata is selected, the intelli-metadata is displayed in text in the video picture of the summary video file at time when the intelli-metadata is associated, for example. For example, in a case where a person is not included in the video picture for a constant time in a certain time, a text of “person non-detection” is displayed in a certain time in the video picture of the summary video file. 
     When “start” button on screen  91   d  is clicked, controller  21   a  of terminal apparatus  1  transmits video display information (information on whether to display the text of the metadata and the intelli-metadata in the video picture of the summary video file) selected by the user to server  2 . 
     When controller  31   a  of server  2  receives the video display information from terminal apparatus  1 , controller  31   a  of server  2  transmits the video file and the intelli-metafile stored in the folder and the video display information received from terminal apparatus  1  to server  62 . 
     Controller  81   a  of server  62  generates a summary video file based on the information received from server  2 . For example, controller  81   a  of server  62  extracts a predetermined video picture from the video picture of the video file based on the intelli-metadata in the intelli-metafile and the metadata added to the video file to generate the summary video file. When controller  81   a  of server  62  generates the summary video file, controller  81   a  of server  62  includes the text of the metadata or the intelli-metadata in the video picture of the summary video file based on the video display information received from server  2 . 
     Controller  81   a  of server  62  transmits the generated summary video file to server  2 . Controller  31   a  of server  2  stores the summary video file in the folder in which the video file as the source of the summary video file is stored. 
     Thereby, the user accesses the folder of the case managed by server  2 , making it possible to browse the summary video file. 
       FIG. 22  is a sequence diagram showing a summary video file generation operation example of the summary video generation system. Controller  21   a  of terminal apparatus  1  accesses server  2  in response to an operation of a user. Controller  31   a  of server  2  displays a retrieval screen of a case on the display of terminal apparatus  1  in response to the access from terminal apparatus  1  (for example, refer to screen  91   a  in  FIG. 21A ). The user inputs retrieval information of a desired case for producing a summary video file on the retrieval screen of the display of terminal apparatus  1 . 
     Controller  21   a  of terminal apparatus  1  transmits the retrieval information of the case of generating the summary video file input by the user to server  2  (step S 61 ). 
     Controller  31   a  of server  2  refers to HDD  33  to retrieve the case based on the retrieval information received in step S 61  (step S 62 ). 
     Controller  31   a  of server  2  displays type information (for example, refer to screen  91   b  in  FIG. 21B ) of files (for example, a video file, a voice file, an image file of a memorandum, and the like) stored in the folder of the case retrieved in step S 62 , on the display of terminal apparatus  1  (step S 63 ). 
     The user selects a file of generating a summary video file on the screen in step S 63  (for example, selects a radio button on screen  51   b  in  FIG. 9B ). 
     Controller  21   a  of terminal apparatus  1  transmits information (for example, information of BWC video selected with the radio button on screen  91   c  in  FIG. 21C ) of the file that is selected (designated) by the user and generates the summary video file, to server  2  (step S 64 ). 
     Controller  31   a  of server  2  obtains a file (for example, a video file of a video picture shot by a wearable camera) corresponding to the information of the file received in step S 64  from HDD  33 , and transmits a copy of the obtained file to server  61  (step S 65 ). 
     Controller  71   a  of server  61  analyzes the video picture of the video file transmitted in step S 65  to generate an intelli-metafile (step S 66 ). 
     Controller  71   a  of server  61  transmits the generated intelli-metafile to server  2  (step S 67 ). 
     Controller  31   a  of server  2  links the intelli-metafile transmitted in step S 67  to the video file (the video file transmitted in step S 65 ) as a generation source of the intelli-metafile to store the intelli-metafile in HDD  33  (step S 68 ). For example, controller  31   a  of server  2  stores the intelli-metafile in the folder in which the video file as the generation source of the intelli-metafile is stored. 
     When controller  31   a  of server  2  stores the intelli-metafile in the folder, controller  31   a  of server  2  displays a selection screen (for example, screen  91   d  in  FIG. 21D ) of the metadata and the intelli-metadata on the display of terminal apparatus  1  (step S 69 ). 
     For example, in a case of desiring to display the text of metadata in the video picture of the summary video file to be generated, the user selects a check box corresponding to the metadata. In addition, for example, in a case of desiring to display the text of intelli-metadata in the video picture of the summary video file to be generated, the user selects a check box corresponding to the intelli-metadata. 
     Controller  21   a  of terminal apparatus  1  transmits the selection information (video display information) of the metadata and the intelli-metadata selected by the user to server  2  (step S 70 ). 
     Controller  31   a  of server  2  transmits the video display information received in step S 70 , the intelli-metafile stored in the folder in step S 68  and the video file as the generation source of the intelli-metafile to server  62  (step S 71 ). 
     Controller  81   a  of server  62  generates a summary video file from the video display information, the intelli-metafile, and the video file transmitted in step S 71  (step  72 ). 
     Controller  81   a  of server  62  transmits the summary video file generated in step S 72  to server  2  (step S 73 ). 
     Controller  31   a  of server  2  links the summary video file transmitted in step S 72  with the video file as the source of the summary video file to store the summary video file in HDD  33  (step S 74 ). For example, controller  31   a  of server  2  stores the summary video file in the folder in which the video file as the source of the summary video file is stored. 
     Consequently the user, for example, accesses the folder of the case managed in server  2 , thus making it possible to browse the summary video file. 
     &lt;Operation 2-1: Operation of Browsing Summary Video File&gt; 
       FIG. 23A ,  FIG. 23B ,  FIG. 23C , and  FIG. 23D  are diagrams showing screen examples of terminal apparatus  1  in the browsing operation of the summary video file. 
     Screen  92   a  as shown in  FIG. 23A  is displayed when terminal apparatus  1  accesses server  2 , for example. Controller  31   a  of server  2  displays screen  92   a  on the display of terminal apparatus  1  in response to the access from terminal apparatus  1 . 
     Screen  92   a  is a screen for retrieving a case. A user inputs information of a desired case for browsing a summary video file in text boxes displayed on screen  92   a , thus making it possible to retrieve the desired case for browsing the summary video file. 
     In an example of screen  92   a , the case number [NJ180425000011003] of the desired case for browsing the summary video file is input in the text box of the case number. When the user does not know the case number of the desired case for browsing the summary video file, for example, it is possible to retrieve the desired case for browsing the summary video file by inputting at least one of the date when the case occurs, the case type, the police officer name, and the police station name in the text box. 
     Screen  92   b  as shown in  FIG. 23B  shows a screen example after retrieving the case. Screen  92   b  is displayed on the display of terminal apparatus  1  when “retrieval” button in  FIG. 23A  is clicked, for example. 
     The case number [NJ180425000011003] of the retrieved case is displayed on screen  92   b . Further, the type list of the files stored in the folder of the retrieved case is displayed on screen  92   b.    
     File information of “summary video” is added to screen  92   b , which is different from screen  91   b  of the retrieval result as shown in  FIG. 21B . That is, since the summary video file is generated in the case of the case number [NJ180425000011003], the file information of “summary video” is added to screen  92   b.    
     Radio buttons are displayed on screen  92   b . A user selects a radio button corresponding to a desired file for browsing or viewing. 
     For example, in a case where the user is desired to view “summary video” (that is, in a case of desiring to view the summary video file generated in server  62 ), the user selects a radio button corresponding to “summary video”. 
     Screen  92   c  as shown in  FIG. 23C  shows a screen example after a desired file for browsing or viewing is selected. “Summary video” is selected on screen  92   c.    
     When “browse” button as shown on screen  92   c  is clicked, controller  21   a  of terminal apparatus  1  transmits information (in an example of screen  92   c , information of “summary video”) of the file selected with the radio button by the user to server  2 . 
     When controller  31   a  of server  2  receives the information of the file selected with the radio button by the user from terminal apparatus  1 , controller  31   a  of server  2  displays a video picture of a file corresponding to the received information in terminal apparatus  1 . Since in the example of screen  92   c , “summary video” is selected, controller  31   a  of server  2  extracts the summary video file stored in the folder of the retrieved case and displays a video picture of the summary video file on the display of terminal apparatus  1 . 
     Screen  92   d  as shown in  FIG. 23D  shows a screen example on which the video picture of the summary video file is displayed. The user performs operations of reproduction, temporal stop, stop, fast-forward, quick return, and the like of a video on the display of terminal apparatus  1 , making it possible to view the summary video file. 
       FIG. 24  is a sequence diagram showing a summary video file reproduction operation example of the summary video generation system. A user inputs retrieval information for retrieving a desired case for viewing a summary video file by using terminal apparatus  1 . 
     Controller  21   a  of terminal apparatus  1  transmits the retrieval information input by the user to server  2  (step S 81 ). 
     Controller  31   a  of server  2  refers to HDD  33  to retrieve a case based on the retrieval information received in step S 81  (step S 82 ). 
     Controller  31   a  of server  2  displays type information (for example, refer to screen  92   b  in  FIG. 23B ) of files (for example, a video file, a voice file, an image file of a memorandum, summary video file, and the like) stored in the folder of the case retrieved in step S 82 , on the display of terminal apparatus  1  (step S 83 ). 
     The user selects the summary video file on the screen in step S 83  (for example, selects a radio button corresponding to “summary video” on screen  92   c  in  FIG. 23C ). 
     Controller  21   a  of terminal apparatus  1  transmits the information (information of having selected the summary video file) selected by the user to server  2  (step S 84 ). 
     Controller  31   a  of server  2  displays a video picture (for example, refer to screen  92   d  in  FIG. 23D ) of the file (summary video file) of the information that is selected by the user and is transmitted in step S 84 , on the display of terminal apparatus  1  (step S 85 ). 
     Buttons of reproduction, temporal stop, stop, fast-forward, quick return, and the like are displayed on the display of terminal apparatus  1  (for example, refer to screen  92   d  in  FIG. 23D ). The user clicks these buttons, thus making it possible to perform operations of reproduction, temporal stop, stop, fast-forward, quick return, and the like of the video. 
     &lt;Operation 2-2: Export Operation&gt; 
       FIG. 25  is a diagram showing a screen example of terminal apparatus  1  in the export operation. 
     Screen  101  as shown in  FIG. 25  shows a screen example after a desired file for browsing or viewing is selected. Screen  101  corresponds to screen  92   d  explained in  FIG. 23D , for example. For example, screen  101  shows a screen example in which after the case is retrieved by server  2 , the information of files in the folder of the retrieved case is displayed on the display of terminal apparatus  1 , and a desired summary video file for viewing is selected by the user. The video picture in the summary video file is displayed on screen  101 . 
     The user clicks buttons of reproduction, temporal stop, stop, fast-forward, quick return, and the like displayed on the display of terminal apparatus  1  to browse the summary video file. The user, as a result of having viewed the summary video, designates a desired range of export from the video picture in the summary video file on the display of terminal apparatus  1 . 
     For example, the user designates a start time of a desired summary video for export on the display of terminal apparatus  1 . In addition, the user designates an end time of a desired summary video for export on the display of terminal apparatus  1 . 
     In an example of screen  101 , “12:25” is input in the text box of “start time” for starting the export. In the example of screen  101 , “12:32” is input in the text box of “end time” for ending the export. 
     The user may click “selection” button on screen  101  when a desired video picture for starting the export is displayed in the middle of browsing the video. Controller  21   a  of terminal apparatus  1  may input a time within the reproducing video in the text box of “start time” in response to clicking “selection” button. Controller  21   a  of terminal apparatus  1  may input a time within the reproducing video in the text box of “end time” in response to next clicking “selection” button. 
     When an export range of the summary video file is designated and “export” button is clicked, controller  21   a  of terminal apparatus  1  transmits information of the export range input on screen  101  to server  2 . 
     Controller  31   a  of server  2  edits a copy file of the summary video file based on the information of the export range transmitted from terminal apparatus  1 . For example, controller  31   a  of server  2  deletes a video picture out of the export range of the copy file to generate an export file. Consequently the user can obtain a video file of the video picture in the designated range by the user from the summary video file. 
       FIG. 26  is a sequence diagram showing an export operation example of the document production system. The user uses terminal apparatus  1  to input retrieval information for retrieving a desired case for producing an export file. 
     Controller  21   a  of terminal apparatus  1  transmits the retrieval information input by the user to server  2  (step S 91 ). 
     Controller  31   a  of server  2  refers to HDD  33  to retrieve a case based on the retrieval information received in step S 91  (step S 92 ). 
     Controller  31   a  of server  2  displays type information (for example, refer to screen  92   b  in  FIG. 23B ) of files (for example, a video file, a voice file, an image file of a memorandum, a summary video file, and the like) stored in the folder of the case retrieved in step S 92 , on the display of terminal apparatus  1  (step S 93 ). 
     The user selects a summary video file on a screen displayed on the display of terminal apparatus  1  in step S 93  (for example, selects a radio button corresponding to “summary video” on screen  92   c  in  FIG. 23C ). 
     Controller  21   a  of terminal apparatus  1  transmits the information (information of having selected the summary video file) selected by the user to server  2  (step S 94 ). 
     Controller  31   a  of server  2  displays the video picture (for example, refer to screen  101  in  FIG. 25 ) of the file (summary video file) of the information that is selected by the user and is transmitted in step S 94 , on the display of terminal apparatus  1  (step S 95 ). 
     The user views the video displayed on the display of terminal apparatus  1 , making it possible to designate a desired range for producing the export file. For example, the user can designate a desired range for producing the export file by time within the video picture (for example, refer to a start time and an end time on screen  101  in  FIG. 25 ). The user performs operations of reproduction, quick return, and the like of the video to repeatedly view the video, making it possible to designate a desired range for producing the export file. 
     Controller  21   a  of terminal apparatus  1  transmits the export range designated by the user to server  2  (step S 96 ). 
     Controller  31   a  of server  2  edits a video picture in the copy file of the summary video file (for example, deletes a video picture out of the export range) based on the export range transmitted in step S 96  to generate an export file (step S 97 ). 
     Controller  31   a  of server  2  links the export file generated in step S 97  to the summary video file to store the export file in HDD  33  (step S 98 ). For example, controller  31   a  of server  2  stores the export file in the folder in which the summary video file as the source of the export file is stored. Consequently the user can obtain the video file of the video picture in a range designated by the user from the summary video file. 
     &lt;Operation 2-3: Operation of Generating AT File from Summary Video File&gt; 
       FIG. 27  is a diagram showing a screen example of terminal apparatus  1  in the generation operation of the AT file. 
     Screen  102  as shown in  FIG. 27  shows a screen example after selecting a desired file for generating an AT file. Screen  102  corresponds to screen  92   c  explained in  FIG. 23C , for example. “Summary video” is selected on screen  102 . 
     In a case of desiring to generate an AT file of the video picture in the summary video file, the user clicks “conversion into text from voice” button on screen  101 . 
     When “conversion into text from voice” button as shown on screen  102  is clicked, controller  21   a  of terminal apparatus  1  transmits information (in an example of screen  102 , information of “summary video”) of the file selected with the radio button by the user to server  2 . 
     When controller  31   a  of server  2  receives the information of the file selected with the radio button by the user from terminal apparatus  1 , controller  31   a  of server  2  transmits a copy of the file corresponding to the received information to server  3  explained in Embodiment 1. Since in the example of screen  101 , “summary video” is selected, controller  31   a  of server  2  transmits a copy of the summary video file to server  3 . 
     When controller  41   a  of server  3  receives the summary video file transmitted from server  2 , controller  41   a  of server  3  extracts voice data and converts the extracted voice data into text data. Controller  41   a  of server  3  generates, for example, an AT file as shown in  FIG. 4 . When controller  41   a  of server  3  generates the AT file, controller  41   a  of server  3  transmits the generated AT file to server  2 . 
     When controller  31   a  of server  2  receives the AT file from server  3 , controller  31   a  of server  2  stores the AT file in the folder in which the summary video file transmitted to server  3  is stored. Consequently the summary video file and the AT file in the summary video file are linked (stored in the folder of the same case) to be managed. 
     Thereby a user accesses the folder of the case managed by server  2 , making it possible to browse the AT file in the summary video file. 
       FIG. 28  is a sequence diagram showing an AT file generation operation example of the summary video generation system. The user uses terminal apparatus  1  to input retrieval information for retrieving a desired case for producing an AT file. 
     Controller  21   a  of terminal apparatus  1  transmits the retrieval information input by the user to server  2  (step S 101 ). 
     Controller  31   a  of server  2  refers to HDD  33  to retrieve a case based on the retrieval information transmitted in step S 101  (step S 102 ). 
     Controller  31   a  of server  2  displays type information (for example, refer to screen  92   b  in  FIG. 23B ) of files (for example, a video file, a voice file, an image file of a memorandum, a summary video file, and the like) stored in the folder of the case retrieved in step S 102 , on the display of terminal apparatus  1  (step S 103 ). 
     The user selects the summary video file on a screen in step S 103  (for example, selects a radio button corresponding to “summary video” on screen  102  in  FIG. 27 ). 
     Controller  21   a  of terminal apparatus  1  transmits the information (information of having selected the summary video file) selected by the user to server  2  (step S 104 ). 
     Controller  31   a  of server  2  displays the video picture of the file (summary video file) of the information that is selected by the user and is transmitted in step S 104 , on the display of terminal apparatus  1  (step S 105 ). 
     The user views the video displayed on the display of terminal apparatus  1 , making it possible to designate a desired range for producing the AT file. For example, the user can designate a desired range for producing the AT file by a time within the video picture. The user performs operations of reproduction, quick return, and the like of the video to repeatedly view the video, making it possible to designate a desired range for producing the export file. 
     Controller  31   a  of server  2  transmits the range of the AT file designated by the user and a generation instruction of the AT file to server  2  (step S 106 ). 
     When controller  31   a  of server  2  receives the generation instruction of the AT file transmitted in step S 106 , controller  31   a  of server  2  copies the summary video file reproduced in step S 105  to transmit a copy of the summary video file to server  3  (step S 107 ). Controller  31   a  of server  2  transmits the range of the AT file transmitted in step S 106  to server  3 . 
     Controller  41   a  of server  3  converts, to text, voices included in the summary video file transmitted in step S 107  in the range of the AT file transmitted in step S 107  (step S 108 ). 
     Controller  41   a  of server  3  transmits the AT file including the data converted into text to server  2  (step S 109 ). 
     Controller  31   a  of server  2  links the AT file transmitted in step S 109  to the video file converted into text (the summary video file transmitted in step S 107 ) to store the AT file in HDD  33  (step S 110 ). For example, controller  31   a  of server  2  stores the AT file in the folder in which the summary video file converted into text is stored. 
     Consequently the user accesses, for example, the folder of the case managed by server  2 , making it possible to browse the AT file. 
     As explained above, controller  31   a  of server  2  configuring the information processing apparatus obtains the video file designated by terminal apparatus  1  from HDD  33  in which the video file of the video picture shot by the wearable camera attached to or owned by the police officer or by the on-vehicle camera mounted on the police vehicle is stored. Controller  71   a  of server  61  configuring the information processing apparatus analyzes the video picture in the video file obtained by server  2  to generate the intelli-metadata associated with the case. Controller  81   a  of server  62  configuring the information processing apparatus generates the summary video file by extracting a video picture portion as the report target of the case from the video file based on the intelli-metadata generated by server  61 . Communication interface  34  of server  2  configuring the information processing apparatus transmits the data of the summary video file generated by server  62  to terminal apparatus  1 . In this way, since the information processing apparatus generates the summary video file including the video picture of the portion as the report target from the video file of the video picture shot by the camera, the production of the report associated with the case by the user is made easy. 
     In the above description, the intelli-metadata is managed by the file different from the video file, but is not limited thereto. The intelli-metadata may be added to the video data in the video file. 
     Each of the functional blocks used for explanation of the above embodiments is realized as an LSI as an integrated circuit typically. These may be individually one-chipped and may be one-chipped to include a part or all of them. Here, each of the functional blocks is formed of the LSI, but may be called an IC, a system LSI, a super LSI, and an ultra LSI depending on a difference of an integration degree. 
     The method for forming an integrated circuit is not limited to the LSI, but may be realized by an exclusive circuit or a general-purpose processor. After the LSI manufacturing, a programmable field programmable gate array (FPGA) or a reconfigurable processor capable of reconstructing connection or setting of circuit cells in the inside of the LSI may be used. 
     Further, if techniques of forming an integrated circuit that will replace the LSI by progress of semiconductor techniques or different techniques to be incurred therefrom appear, the integration of functional blocks may be executed using the techniques, not to mention. Application of biotechniques or the like may be made possible. 
     Controller  31   a  of server  2  as explained above may function as an obtainer that obtains the video file designated by terminal apparatus  1  from HDD  33  having stored the video file of the video picture associated with the case shot by the camera. In addition, controller  41   a  of server  3  may function as a converter that extracts voice data included in the video file and converts the extracted voice data into the text data. Further, communication interface  34  of server  2  may function as a transmitter that transmits the text data (AT file) to terminal apparatus  1 . Further, controller  41   a  of server  3  may function as a generator that generates the AT file in the file format designated by terminal apparatus  1 . 
     Controller  31   a  of server  2  may function as an obtainer that obtains the video file designated by terminal apparatus  1  from HDD  33  having stored the video file of the video picture associated with the case shot by the camera. In addition, controller  71   a  of server  61  may function as a generator that analyzes the video picture in the video file to generate the intelli-metadata. Controller  81   a  of server  62  may function as a generator that generates the summary video file by deleting a part of the video picture in the video file based on the intelli-metadata generated by server  61 . Further, communication interface  34  of server  2  may function as a transmitter that transmits the video picture data in the summary video file generated by server  62  to terminal apparatus  1 . 
     INDUSTRIAL APPLICABILITY 
     The present disclosure is useful for document production systems and summary video generation systems on cases at police stations. 
     REFERENCE SIGNS LIST 
     
         
           1  Terminal apparatus 
           2 ,  3 ,  61 ,  62  Server 
           10  AT file 
           11   a ,  11   b  Time stamp 
           12   a ,  12   b  Identifier 
           13   a ,  13   b  Text 
           14   a ,  14   b  Metadata 
           15   a ,  15   b  Image 
           21 ,  31 ,  41 ,  71 ,  81  CPU 
           21   a ,  31   a ,  41   a ,  71   a ,  81   a  Controller 
           22 ,  32 ,  42 ,  72 ,  82  RAM 
           23 ,  33 ,  43 ,  73 ,  83  HDD 
           24 ,  34 ,  44 ,  74 ,  84  Communication interface 
           25  User interface