Patent Publication Number: US-10783648-B2

Title: Apparatus and method for processing image

Description:
CROSS-REFERENCE TO THE RELATED APPLICATION 
     This application claims priority from Korean Patent Application No. 10-2018-0025912, filed on Mar. 5, 2018, and Korean Patent Application No. 10-2019-0000862, filed on Jan. 3, 2019 in the Korean Intellectual Property Office, the disclosures of which are incorporated herein in their entirety by reference. 
     BACKGROUND 
     1. Field 
     One or more embodiments relate to an apparatus and a method for processing an image for object tracking. 
     2. Description of the Related Art 
     An image processing apparatus provides a user with an image acquired by a camera. At this time, the image processing apparatus may provide a real-time image or a recorded image to the user. 
     Meanwhile, the image processing apparatus may not only provide the user with the whole recorded image, but may also provide a part of the recorded image to the user. The part of the recorded image may be a continuous image or a summation of discontinuous images. 
     A user interface is needed to select and provide the user with the part of the recorded image. 
     SUMMARY 
     One or more exemplary embodiments of the inventive concept include an apparatus and a method for processing an image for object tracking. 
     Various aspects of the inventive concept will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments. 
     According to one or more embodiments, there is provided an image processing apparatus which may include: a display configured to display at least one screen; a communication interface configured to receive camera information from at least one camera; a processor configured to extract at least one position information, at least one time information, and at least one image information corresponding to one another from the camera information; and generate a first screen displaying the at least one position information, a second screen displaying the at least one time information, and a third screen for displaying the at least one image information. The image processing apparatus may further include a user interface configured to receive a user input for selecting at least one of first position information from the at least one position information, and receive first time information from the at least one time information, wherein the processor is further configured to extract, from the at least one image information, first image information corresponding to at least one of the first position information and the first time information, and reproduce the first image information through the third screen. 
     The camera may be a movable camera. 
     The processor may be further configured to extract at least one object from the at least one image information and generate a fourth screen displaying the at least one object, and the user interface may be further configured to receive a user input for selecting a first object from the at least one object, and the processor may be further configured to extract second image information including the first object from the at least one image information and reproduce the second image information through the third screen. 
     The processor may be further configured to extract second position information corresponding to the second image information from the at least one position information or second time information corresponding to the second image information from the at least one time information, update the first screen such that the second position information is displayed thereon, and update the second screen such that the second time information is displayed thereon. 
     The at least one object may be at least one of a license plate number of a vehicle, a face, a voice, and a sound having a predetermined frequency. 
     According to one or more embodiments, there is provided an image processing apparatus which may include: a database storing camera position information; a display configured to display at least one screen; a communication interface configured to receive first camera information from at least one first camera configured to recognize an object, and receive second camera information from at least one second camera not configured to recognize the object; and; and a processor configured to: extract, from the first camera information, at least one first camera position information, at least one first camera time information, and at least one first camera image information corresponding to one another; extract, from the database, at least one second camera position information indicating a position of the at least one second camera positioned within a predetermined distance from a position of the at least one first camera indicated by the at least one first camera position information; extract, from the second camera information, at least one second camera time information and at least one second camera image information corresponding to the at least one second camera position information; and generate a first screen displaying the at least one first camera position information and the at least one second camera position information, a second screen displaying the at least one first camera time information and the at least one second camera time information, and a third screen for displaying the at least one first camera image information or the at least one second camera image information. 
     The object may be at least one of a license plate number of a vehicle, a face, a voice, and a sound having a predetermined frequency. 
     The at least one first camera and the at least one second camera may be stationary cameras. 
     The at least one first camera position information and the at least one second camera position information may be displayed distinguishably from each other on the first screen. 
     The at least one first camera time information and the at least one second camera time information may be displayed distinguishably from each other on the second screen. 
     The processor may be further configured to: extract the object from the at least one first camera image information; determine a moving direction of the object; and extract, from the database, the at least one second camera position information indicating a position of the at least one second camera positioned within the predetermined distance in the moving direction of the object from a position of the at least one first camera indicated by the at least one first camera position information. 
     The image processing apparatus may further include a user interface configured to receive a user input for selecting an area other than an area of the at least one first camera position information on the first screen, wherein the processor is further configured to extract, from the database, the at least one second camera position information corresponding to the selected area, in response to the user input. 
     The image processing apparatus may further include a user interface configured to receive a user input for selecting an area other than an area of the at least one first camera time information on the second screen, wherein the processor is further configured to extract, from the database, the at least one second camera position information corresponding to the selected area, in response to the user input. 
     The image processing apparatus may further include a user interface configured to receive a first user input for selecting the at least one first camera position information or the at least one second camera position information displayed on the first screen, and a second user input for selecting the at least one first camera time information or the at least one second camera time information displayed on the second screen, wherein the processor is further configured to reproduce the at least one first camera image information or the at least one second camera image information through the third screen in response to the first user input, and reproduce the at least one first camera image information or the at least one second camera image information through the third screen in response to the second user input. 
     According to one or more embodiments, there is provided an image processing method which may include: storing camera position information in a database; receiving first camera information from at least one first camera capable of recognizing an object, and receiving second camera information from at least one second camera not configured to recognize the object, by using a communication interface; extracting, from the first camera information, at least one first camera position information, at least one first camera time information, and at least one first camera image information corresponding to one another, by using a processor; extracting, from the database, at least one second camera position information indicating a position of the at least one second camera positioned within a predetermined distance from a position of the at least one first camera position indicated by the at least one first camera position information, by using the processor; extracting, from the second camera information, at least one second camera time information and at least one second camera image information corresponding to the at least one second camera position information, by using the processor; and generating a first screen displaying position information comprising the at least one first camera position information, a second screen displaying time information comprising the at least one first camera time information, and a third screen for displaying the at least one first camera image information, by using the processor. 
     The object may be at least one of a license plate number, a face, a voice, and a sound having a predetermined frequency. 
     The at least one first camera and the at least one second camera may be stationary cameras. 
     The at least one first camera position information and the at least one second camera position information may be displayed distinguishably from one another on the first screen. 
     The at least one first camera time information and the at least one second camera time information may be displayed distinguishably from each other on the second screen. 
     The at least one position information may displayed in a form of a map. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       These and/or other aspects will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which: 
         FIG. 1  is a diagram for explaining a security system according to an embodiment; 
         FIG. 2  is a block diagram showing a configuration of an image processing apparatus according to an embodiment; 
         FIG. 3  is a flowchart illustrating an image processing method according to an embodiment; 
         FIG. 4  is a diagram illustrating a screen of an image processing apparatus according to an embodiment; 
         FIG. 5  is a flowchart illustrating an image processing method according to an embodiment; 
         FIGS. 6A and 6B  are flowcharts for explaining an image processing method according to an embodiment; 
         FIG. 7  is a diagram illustrating a screen of an image processing apparatus according to an embodiment; 
         FIG. 8  is a flowchart illustrating an image processing method according to an embodiment; 
         FIG. 9  is a diagram illustrating a screen of an image processing apparatus according to an embodiment; 
         FIG. 10  is a flowchart illustrating an image processing method according to an embodiment; 
         FIG. 11  is a flowchart illustrating an image processing method according to an embodiment; 
         FIG. 12  is a diagram showing a screen of an image processing apparatus according to an embodiment; and 
         FIG. 13  is a flowchart illustrating an image processing method according to an embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Reference will now be made in detail to embodiments which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. It is to be noted that the embodiments presented herein are all exemplary, and, these embodiments may have different forms and should not be construed as being limited to the descriptions set forth herein. As used herein, expressions such as “at least one of,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list. For example, the expression, “at least one of a, b, and c,” should be understood as including only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c. 
     The embodiments presented herein are not intended to limit the inventive concept to particular modes of practice, and it is to be appreciated that all changes, equivalents, and substitutes that do not depart from the spirit and technical scope of the inventive concept are encompassed in the present disclosure. In the description of the present disclosure, certain detailed explanations of the related art are omitted when it is deemed that they may unnecessarily obscure the essence of the disclosure. 
     While such terms as “first,” “second,” etc., may be used to describe various components, such components must not be limited to the above terms. The above terms are used only to distinguish one component from another. An embodiment provided in the following description is not excluded from being associated with one or more features of another example or another embodiment also provided herein or not provided herein but consistent with the inventive concept. For example, even if matters described in a specific example are not described in a different example thereto, the matters may be understood as being related to or combined with the different example, unless otherwise mentioned in descriptions thereof. 
     In the present disclosure, it is to be understood that the terms such as “including”, “having,” and “comprising” are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof disclosed in the specification, and are not intended to preclude the possibility that one or more other features, numbers, steps, actions, components, parts, or combinations thereof may exist or may be added. 
     The present disclosure may be described in terms of functional block components and various processing steps. Such functional blocks may be realized by any number of hardware and/or software components configured to perform the specified functions. For example, the present disclosure may employ various integrated circuit (IC) components, e.g., memory elements, processing elements, logic elements, look-up tables, and the like, which may carry out a variety of functions under the control of one or more microprocessors or other control devices. Similarly, where the elements of the present disclosure are implemented using software programming or software elements, the disclosure may be implemented with any programming or scripting language such as C, C++, Java, assembler language, or the like, with the various algorithms being implemented with any combination of information structures, objects, processes, routines or other programming elements. Functional aspects may be implemented in algorithms that are executed on one or more processors. Furthermore, the present disclosure could employ any number of conventional techniques for electronics configuration, signal processing and/or control, information processing and the like. The words “mechanism”, “element”, “means”, and “configuration” are used broadly and are not limited to mechanical or physical embodiments, but may include software routines in conjunction with processors, etc. 
     Hereinafter, various embodiments of the inventive concept will be described in detail with reference to the accompanying drawings. 
       FIG. 1  is a diagram for explaining a security system according to an embodiment. 
     Referring to  FIG. 1 , a security system  1  according to an embodiment includes a camera  10 , a network  20 , a server  30 , and a monitoring terminal  40 . 
     The security system  1  provides a configuration in which when information of the camera  10  is transmitted to the server  30  over the network  20 , a user monitors the information transmitted to the server  30  by using the monitoring terminal  40 . 
     The camera  10  includes a movable camera  11  and a stationary camera  12 . 
     The movable camera  11  may be carried by a person or installed in a vehicle. A surveillance area of the movable camera  11  may be fixed or may change in accordance with a movement of the movable camera  11 . 
     The movable camera  11  may be driven by a regular power or by a battery. For example, the movable camera  11  installed in the vehicle may be supplied with a regular power from the vehicle, and the movable camera  11  separated from the vehicle may be driven by a battery. 
     The movable camera  11  may capture images of the surveillance area at all times or may maintain a sleep mode at normal times and switch to an active mode only when an event occurs and then capture images of the surveillance area. 
     The stationary camera  12  may be installed in a street. An installation area of the stationary camera  12  may not change. At this time, a surveillance area of the stationary camera  12  may be fixed or changed. 
     The stationary camera  12  may be a pan/tilt/zoom (PTZ) camera. The PTZ camera may be a camera capable of panning and tilting and adjusting the zoom magnification of a lens. A surveillance area of the PTZ camera may be changed according to panning, tilting, and/or zoom magnification control of the PTZ camera. 
     The stationary camera  12  may be driven by a regular power or a battery. 
     The stationary camera  12  may photograph the surveillance area at all times or may photograph the surveillance area only when an event occurs. 
     For example, the PTZ camera may maintain the sleep mode at normal times and may periodically wake up to check whether the event has occurred. The PTZ camera may switch to the active mode when the event occurs, capture an image, and return to the sleep mode again when the event does not occur. 
     The camera  10  may generate position information and time information based on a Global Positioning System (GPS) signal received through a GPS module (not shown). The GPS module (not shown) may be provided in the camera  10  or separately from the camera  10 , but is not limited thereto. 
     The position information indicates a position of the camera  10 . For example, the position information may include GPS coordinate information about the camera  10 . The time information indicates a time or a time point. 
     The camera  10  generates camera information including position information, time information, and image information corresponding to one another. That is, the camera information includes an image captured at a predetermined position at a predetermined time point. 
     The camera  10  transmits the camera information to the server  30  over the network  20 . 
     The camera  10  may recognize an object. The camera  10  may recognize, for example, a license plate number of a vehicle, a face, a voice, a sound having a predetermined frequency, and the like, but is not limited thereto. The camera  10  capable of recognizing the object may distinguish and generate camera information in which the object is recognized and camera information in which the object is not recognized. 
     The camera  10  may generate camera information without regard to recognition of the object. In this case, the camera  10  may generate camera information in which the object is recognized and camera information in which the object is not recognized, without any distinction. 
     The network  20  may include a wired network or a wireless network. The wireless network may be a 2G or 3G cellular communication system, a 3rd Generation Partnership Project (3GPP), a 4G communication system, a Long-Term Evolution (LTE), or a World Interoperability for Microwave Access (WiMAX). 
     The server  30  may transmit camera information transmitted from the camera  10  over the network  20  to the monitoring terminal  40  and generate commands based on a user input from the monitoring terminal  40  and then transmit the commands to the camera  10  over the network  20 . 
     The monitoring terminal  40  may reproduce and store the camera information transmitted from the server  30 . For example, the monitoring terminal  40  displays an image transmitted from the server  30 . 
     The monitoring terminal  40  may receive a user input and transmit the user input to the server  30 . The user input may be a predetermined position in a map, a predetermined position at a time bar, or a user input for selecting a predetermined object. 
     The monitoring terminal  40  may include at least one or more processors. The monitoring terminal  40  may be driven by being included in another hardware device having a microprocessor or a general purpose computer system. The monitoring terminal  40  may be a personal computer or a mobile terminal. 
       FIG. 2  is a block diagram showing a configuration of an image processing apparatus according to an embodiment. 
     Referring to  FIG. 2 , an image processing apparatus  200  according to an embodiment includes a display  210 , a communication interface  220 , a processor  230 , a user interface  240 , and a database  250 . 
     The display  210  displays at least one screen. 
     The communication interface  220  receives camera information from the camera  10  of  FIG. 1 . The camera  10  may be the movable camera  11 . 
     The processor  230  extracts position information, time information, and image information corresponding to one another from the camera information, and generates a first screen including a map displaying the position information, a second screen including a time bar displaying the time information, and a third screen for displaying the image information. The processor  230  also extracts, from the image information, first image information corresponding to at least one of first position information and first time information in response to a user input information, and reproduces the first image information through a third screen. 
     The processor  230  may extract at least one object from the image information and generate a fourth screen displaying the object. 
     The object may be at least one of a license plate number of a vehicle, a face, a voice, and a sound having a predetermined frequency. 
     The processor  230  may extract, from the image information, second image information including a first object information in response to a user input for selecting the first object from the object through the fourth screen, and reproduce the second image information through the third screen. 
     At this time, the processor  230  may extract second position information corresponding to the second image information from the position information and/or extract second time information corresponding to the second image information from the time information, and update the first screen such that the second position information is displayed on the map and/or update the second screen such that the second time information is displayed on the time bar. 
     Accordingly, the image processing apparatus  200  according to an embodiment may provide the user with the map indicating a position where a selected object is photographed according to a user input through the first screen, the time bar representing a time point at which the selected object is photographed according to a user input through the second screen, and an image obtained by photographing the selected object according to a user input through the third screen and the selected object according to a user input through the fourth screen. 
     The processor  230  extracts, from the first camera information received from a first camera such as the camera  10 , first camera position information, first camera time information, and first camera image information corresponding to one another. The processor  230  also extracts, from the database  250 , second camera position information indicating a position of a second camera such as the camera  10  positioned within a predetermined distance from a position of the first camera indicated by the first camera position information. The processor  230  further extracts, from second camera information received from the second camera, second camera time information and second camera image information corresponding to the second camera position information, and generates a first screen including a map displaying the first camera position information and the second camera position information, a second screen including a time bar displaying the first camera time information and the second camera time information, and a third screen for displaying the first camera image information or the second camera image information. 
     In the descriptions below, the term “first (second, third, or fourth) camera information” refers to information about the first, second, third, or fourth camera, respectively. Also, the term “first (second, third, or fourth) camera position information” refers to information about a position of the first (second, third, or fourth) camera, the term “first (second, third, or fourth) camera time information” refers to information about a time point of the first (second, third, or fourth) camera, and the term “first (second, third, or fourth) camera image information” refers to the image information of the first (second, third, or fourth) camera. Further, the term “at least one position (time or image) information” refers to information about at least one position (time (or time point) or image). 
     The user interface  240  receives a user input for selecting the first position information from the position information or the first time information from the time information. 
     The user interface  240  may receive a user input for selecting the first object from the object. 
     The database  250  stores the position information about the camera  10 . The database  250  may store the first camera position information and the second camera position information. 
     The communication interface  220  receives the first camera information from a first camera configured to recognize the object, and receives the second camera information from a second camera not configured to recognize the object. 
     The object may be at least one of the license plate number of the vehicle, the face, the voice, and the sound having the predetermined frequency. 
     The first camera information may include an image captured by the first camera at a predetermined time point at a predetermined position. 
     The second camera information may include an image captured by the second camera at a predetermined time point at a predetermined position. 
     The processor  230  extracts the first camera position information, the first camera time information, and the first camera image information corresponding to one another from the first camera information. The processor  230  also extracts, from the database  250 , the second camera position information indicating a position of the second camera positioned within a predetermined distance from a position of the first camera indicated by the first camera position information. The processor  230  further extracts, from the second camera information, the second camera time information and the second camera image information corresponding to the second camera position information, and generates a first screen including a map displaying the first camera position information and the second camera position information, a second screen including a time bar displaying first camera time information and the second camera time information, and a third screen for displaying the first camera image information or the second camera image information. 
     The processor  230  extracts at least one object from the first camera image information, determine a movement direction of the object, and extract, from the database  250 , the second camera position information indicating a position of the second camera positioned within a predetermined distance in the movement direction of the object from a position of the first camera indicated by the first camera position information. 
     Accordingly, the image processing apparatus  200  according to an embodiment provides not only an image of an object photographed by the first camera capable of recognizing the object, but also an image of the object photographed by the second camera incapable of recognizing the object, thereby providing a more reinforced object tracking function. 
     The processor  230  may extract the second camera position information in response to a user input for selecting an area other than an area in the map where the first camera position information is displayed. 
     The processor  230  may extract the second camera position information in response to a user input for selecting an area other than an area at the time bar where the e first camera time information is displayed. 
     Each of the first camera and the second camera are one or more. The first camera and the second camera may be stationary cameras  12 . 
     When there are a plurality of first cameras, for example, each first camera may generate the first camera information including at least one image obtained by photographing an object recognized by the first camera. 
     When there are a plurality of second cameras, for example, a second camera may generate the second camera information including an image obtained by photographing the object recognized by the first camera, and another second camera may generate the second camera information including an image obtained by not photographing the object recognized by the first camera. 
     The first camera position information and the second camera position information may be displayed to be distinguished from each other on the map. 
     The first camera time information and the second camera time information may be displayed to be distinguished from each other on the time bar. 
     The processor  230  may reproduce the first camera image information in response to a first user input for selecting the first camera position information on the map through the third screen, or reproduce the second camera image information in response to a second user input for selecting the second camera position information on the map through the third screen. 
     The processor  230  may extract at least one object from the first camera image information, and generate the fourth screen displaying the object. 
     The processor  230  may extract third camera image information including the first object selected according to a user input through the first screen from the first camera image information, and fourth camera image information including the first object from the second camera image information, and reproduce the third camera image information and the fourth camera image information through the third screen. 
     Accordingly, the image processing apparatus  200  according to an embodiment may provide the user with the map indicating a position where the selected object is photographed according to a user input through the first screen, the time bar representing a time at which the selected object is photographed according to a user input through the second screen, and an image obtained by photographing the selected object according to a user input through the third screen, and the selected object according to a user input through the fourth screen. 
     The user interface  240  may receive a user input for selecting an area other than an area of the map where the first camera position information is displayed. 
     The user interface  240  may receive a user input for selecting an area other than an area of the time bar where the first camera time information is displayed. 
     The user interface  240  may receive the first user input for selecting the first camera position information displayed on the map or the second user input for selecting the second camera position information displayed on the map. 
     The user interface  240  may receive a user input for selecting the first object from the at least one object. 
     The image processing apparatus  200  according to the embodiments may be implemented as one physical device or a plurality of physical devices organically combined with each other. To this end, some of the components included in the image processing apparatus  200  may be implemented or installed as any one physical device, and the other components may be implemented or installed as other physical devices. 
     Meanwhile, the image processing apparatus  200  may be embedded in the camera  10 , the server  30  or the monitoring terminal  40  or may be applied to a device separately from the camera  10 , the server  30 , or the monitoring terminal  40 . 
     Hereinafter, an operation of the image processing apparatus  200  according to an embodiment will be described in detail with reference to  FIGS. 3 to 7 . 
       FIG. 3  is a flowchart illustrating an image processing method according to an embodiment. 
       FIG. 4  is a diagram illustrating a screen of an image processing apparatus, according to an embodiment. 
     Referring to  FIG. 4  along with  FIG. 2 , the display  210  of the image processing apparatus  200  may display a screen  400  including a first screen  410 , a second screen  420 , a third screen  430 , and a fourth screen  440 . 
     Referring to  FIGS. 1 to 4 , the communication interface  220  receives camera information from the camera  10  (S 310 ). The camera  10  may be, for example, the movable camera  11  mounted on a vehicle. 
     The processor  230  extracts, from the camera information, position information, time information, and image information corresponding to one another (S 320 ). 
     The position information may include, for example, first, second, third and fourth position information P 1 A, P 2 A, P 3 A and P 4 A. The time information may include, for example, first, second, third and fourth time information T 1 A, T 2 A, T 3 A and T 4 A. The image information may include, for example, first, second, third and fourth image information. 
     Here, the first position information P 1 A, the first time information T 1 A, and the first image information may correspond to one another, and the second position information P 2 A, the second time information T 2 A, and the second image information may correspond to one another, the third position information P 3 A, the third time information T 3 A and the third image information may correspond to one another, and the fourth position information P 4 A, the fourth time information T 4 A, and the fourth image information may correspond to one another. In other words, the first, second, third and fourth images may be obtained by the camera  10  at the first, second, third and fourth positions P 1 A, P 2 A, P 3 A and P 4 A at the first, second, third and fourth time points T 1 A, T 2 A, T 3 A and T 4 A, respectively. 
     Thereafter, the processor  230  generates the first screen  410  including a map displaying the position information, the second screen  420  including a time bar displaying the time information, and the third screen  430  for displaying the image information (S 330 ). 
     For example, the processor  230  may generate the first screen  410  including the map displaying the first, second, third and fourth position information P 1 A, P 2 A, P 3 A and P 4 A, the second screen  420  including the time bar displaying the first, second, third and fourth time information T 1 A, T 2 A, T 3 A and T 4 A, and the third screen  430  for displaying image information from among the first, second, third and fourth image information, according to a user input. 
     Then, the user interface  240  receives a user input for selecting first position information from the position information (S 341 ). 
     For example, the user interface  240  may receive a first user input U 1 A for selecting the first position P 1 A from the first, second, third and fourth positions P 1 A, P 2 A, P 3 A and P 4 A displayed on the first screen  410 . 
     The processor  230  extracts first image information corresponding to the first position information from the image information, according to a user input (S 351 ). 
     For example, the processor  230  may extract the first image corresponding to the first position P 1 A from the first, second, third and fourth images, according to the first user input U 1 A. 
     Meanwhile, the user interface  240  receives a user input for selecting first time information from the time information (S 342 ). 
     For example, the user interface  240  may receive a second user input U 2 A for selecting the first time point T 1 A from the first, second, third and fourth time points T 1 A, T 2 A, T 3 A and T 4 A displayed on the second screen  420 . 
     The processor  230  extracts first image information corresponding to the first time information from the image information, according to a user input (S 352 ). 
     For example, the processor  230  may extract the first image corresponding to the first time point T 1 A from the first, second, third and fourth images, according to the second user input U 2 A. 
     The processor  230  reproduces an extracted image, that is, the first image, through the third screen  430  (S 360 ). 
       FIG. 5  is a flowchart illustrating an image processing method according to an embodiment. 
     Referring to  FIGS. 1, 2, 4, and 5 , the processor  230  extracts at least one object from at least one image (S 510 ). 
     For example, the processor  230  extracts first, second and third objects O 1 A, O 2 A and O 3 A from first, second, third and fourth image information. The first object O 1 A may be a predetermined license plate number of a vehicle. The second object O 2 A may be a predetermined face. The third object O 3 A may be a predetermined sound. However, the inventive concept is not limited thereto, and thus, different types of object may be extracted by the processor  230 . 
     Then, the processor  230  generates the fourth screen  440  displaying the extracted object (S 520 ). 
     For example, the processor  230  may display the first, second, and third objects O 1 A, O 2 A and O 3 A on the fourth screen  440 . 
     Then, the user interface  240  receives a user input for selecting the first object from the extracted object (S 530 ). 
     For example, the user interface  240  may receive a third user input U 3 A for selecting the first object O 1 A from the first, second and third objects O 1 A, O 2 A and O 3 A. 
     Then, the processor  230  extracts second image information including the first object from the image information (S 540 ). 
     For example, the processor  230  may extract the first, second and third image information including the first object O 1 A from the first, second, third and fourth image information. 
     Then, the processor  230  reproduces the extracted image information through the third screen  430  (S 550 ). 
     For example, the processor  230  may sequentially reproduce the first, second and third image information including the first object O 1 A through the third screen  430 . 
       FIGS. 6A and 6B  are flowcharts for explaining an image processing method according to an embodiment. 
       FIG. 7  is a diagram illustrating a screen of an image processing apparatus, according to an embodiment. 
     Referring to  FIGS. 1, 2, 6A, and 7 , when the user interface  240  receives a user input for selecting a first object from at least one object (S 611 ), and the processor  230  extracts second image information including the first object from at least one image information captured by the camera  10  (S 612 ), the processor  230  extracts second position information corresponding to the second image information from at least one position information (S 613 ). 
     For example, when the user interface  240  receives a fourth user input U 4 A for selecting the first object O 1 A and the processor  230  extracts first, second and third image information which include the first object O 1 A, the processor  230  may extract, from the at least one position information, the first, second and third position information P 1 A, P 2 A and P 3 A corresponding to the first, second and third image information, respectively. 
     At this time, the processor  230  may update a fourth screen  740  such that the second and third objects O 2 A and O 3 A which are not selected are not displayed thereon in response to the fourth user input U 4 A for selecting the first object O 1 A. 
     Thereafter, the processor  230  updates a first screen  710  such that the second position information is displayed on a map (S 614 ). 
     For example, the processor  230  may update the first screen  710  such that the first, second and third position information P 1 A, P 2 A and P 3 A are displayed on the map. Accordingly, the fourth position information P 4 A, at which the fourth image information not including the first object O 1 A is photographed, may be excluded from the updated first screen  710 . 
     Referring to  FIGS. 1, 2, 6B, and 7 , when the user interface  240  receives a user input for selecting the first object from the at least one object (S 621 ), and the processor  230  extracts the second image information including the first object from the at least one image information captured by the camera  10  (S 622 ), the processor  230  extracts time information corresponding to the second image information from at least one time information (S 623 ). 
     For example, when the user interface  240  receives the fourth user input U 4 A for selecting the first object O 1 A, and the processor  230  extracts the first, second and third image information including the first object O 1 A, the processor  230  may extract, from the at least one time information, the first, second and third time information T 1 A, T 2 A and T 3 A corresponding to the first, second and third image information, respectively. 
     At this time, the processor  230  may update the fourth screen  740  such that the second and third objects O 2   a  and O 3   a  which are not selected are not displayed thereon in response to the fourth user input U 4 A for selecting the first object O 1 A. 
     Thereafter, the processor  230  updates the second screen  720  such that the second time information is displayed on a time bar (S 624 ). 
     For example, the processor  230  may update the second screen  720  such that the first, second and third time information T 1 A, T 2 A and T 3 A are displayed on the time bar. Accordingly, the fourth time information T 4 A at which the fourth image information not including the first object O 1 A is photographed, may be excluded from the updated second screen  720 . 
     That is, the image processing apparatus  200  may provide a user with the first object O 1 A selected by the user through the fourth screen  740 , the map indicating the first, second and third position information P 1 A, P 2 A and P 3 A obtained by photographing the first object O 1 A through the first screen  710 , the time bar representing the first, second and third time information T 1 A, T 2 A and T 3 A obtained by photographing the first object O 1 A through the second screen  720 , and the first, second and third image information obtained by photographing the first object O 1 A through the third screen  730 . 
       FIG. 8  is a flowchart illustrating an image processing method according to an embodiment. 
       FIG. 9  is a diagram illustrating a screen of an image processing apparatus, according to an embodiment. 
     Referring to  FIGS. 1, 2, 8, and 9 , the database  250  stores position information about the camera  10  (S 810 ). 
     The camera  10  may be, for example, the stationary camera  12  installed in a building. 
     The database  250  may store, for example, first camera position information indicating a position of a first camera and second camera position information indicating a position of a second camera. The first camera and the second camera may be different cameras  10 , and the first camera position information and the second camera position information may be different from each other. 
     The communication interface  220  receives first camera information from the first camera configured to recognize an object (S 820 ). 
     The processor  230  extracts at least one first camera position information, at least one first camera time information, and at least one first camera image information corresponding to one another from the first camera information (S 830 ). Here, the at least one first camera may be stationary or fixed cameras like the stationary camera  12 . 
     The at least one first camera position information may be, for example, 11 th  camera position information P 11 B and 12 th  camera position information P 12 B. The at least one first camera time information may be, for example, 11 th  camera time information T 11 B and 12 th  camera time information T 12 B. The first camera image information may be, for example, 11 th  camera image information and 12 th  camera image information. Here, the 11 th  and 12 th  cameras may be stationary or fixed cameras. 
     At this time, the 11 th  camera position information P 11 B, the 11 th  camera time information T 11 B and the 11 th  camera image information may correspond to one another, and the 12 th  camera position information P 12 B, the 12 th  camera time information T 12 B, and the 12 th  camera image information may correspond to one another. 
     Then, the processor  230  extracts, from the database  250 , at least one second camera position information indicating a position of the at least one second camera positioned within a predetermined distance from a position of the at least one first camera indicated by the at least one first camera position information (S 840 ). 
     In other words, the processor  230  extracts, from position information stored in the database  250 , information about a position of at least one second camera positioned within a predetermined distance from a position of the at least one first camera. Here, the at least one second camera may be stationary or fixed cameras like the stationary camera  12 . 
     For example, the processor  230  may extract 21 st  camera position information P 21 B positioned at a first distance D 1  from the 11 th  camera position information P 11 B and 22 nd  camera position information P 22 B positioned at a second distance D 2  from the 12 th  camera position information P 12 B from the database  250 . At this time, each of the first distance D 1  and the second distance D 2  may be smaller than a predetermined distance. Here, the 21 st  and 22 nd  cameras may be stationary or fixed cameras. 
     Hereinafter, a method of extracting at least one second camera position according to an embodiment will be described with reference to  FIG. 10 . 
       FIG. 10  is a flowchart illustrating an image processing method according to an embodiment. 
     Referring to  FIGS. 1, 2, 9, and 10 , the processor  230  extracts an object from at least one first camera image information (S 1041 ). 
     For example, the processor  230  may extract a predetermined license plate number of a vehicle from 11 th  camera image information. 
     For example, the processor  230  may extract the predetermined license plate number of the vehicle from 12 th  camera image information. 
     Then, the processor  230  determines a moving direction of the object (S 1042 ). 
     For example, the processor  230  may determine a moving speed of a vehicle having the predetermined license plate number. That is, the processor  230  may determine a moving distance and the moving direction of the vehicle having the predetermined license plate number. 
     The moving direction of the vehicle having the predetermined license plate number obtained from the 11 th  camera image information may be, for example, a southeast direction. 
     The moving direction of the vehicle having the predetermined license plate number obtained from the 12 th  camera image information may be, for example, a northeast direction. 
     Then, the processor  230  extracts, from the database  250 , second camera position information indicating a position of the at least one second camera positioned within a predetermined distance in the moving direction of the at least one object from a position of the first camera indicated by the first camera position information (S 1043 ). 
     For example, the processor  230  may extract the 21 st  camera position information P 21 B that is away from the 11 th  camera position information P 11 B by the first distance D 1  in the southeast direction. 
     For example, the processor  230  may extract the 22 nd  camera position information P 22 B that is away from the 12 th  camera position information P 12 B by the second distance D 2  in the northeast direction. 
     Referring to  FIGS. 1, 2, 8 and 9  again, the communication interface  220  receives the second camera information from a second camera that is not configured to recognize the object (S 850 ). 
     The processor  230  extracts, from the second camera information, at least one second camera time information and at least one second camera image information corresponding to at least one second camera position information (S 860 ). 
     The at least one second camera time information may be, for example, 21 st  camera time information T 21 B and 22 nd  camera time information T 22 B. The at least one first camera image information may be, for example, 21 st  camera image information and 22 nd  camera image information. 
     The processor  230  then generates a first screen  910  including a map displaying the at least one first camera position information and the at least one second camera position information, a second screen  920  including a time bar displaying the at least one first camera time information and at least one second camera time information, and a third screen  930  for displaying the at least one first camera image information or the at least one second camera image information (S 870 ). 
     The at least one first camera position information and the at least one second camera position information are displayed to be distinguished from each other on the map. 
     For example, the processor  230  may display the 11 th  camera position information P 11 B, the 12 th  camera position information P 12 B, the 21 st  camera position information P 21 B, and the 22 nd  camera position information P 22 B on the map of the first screen  910 . At this time, the 11 th  camera position information P 11 B and the 12 th  camera position information P 12 B may be displayed as circular shapes, and the 21 st  camera position information P 21 B and the 22 nd  camera position information P 22 B may be displayed as triangular shapes. 
     The at least one first camera time information and the at least one second camera time information are displayed to be distinguished from each other on the time bar. 
     For example, the processor  230  may display the 11 th  camera time information T 11 B, the 12 th  camera time information T 12 B, the 21 st  camera time information T 21 B, the 22 nd  camera time information T 22 B on the time bar of the second screen  920 . At this time, the 11 th  camera time information T 11 B and the 12 th  camera time information T 12 B may be displayed in different colors from the 21 st  camera time information T 21 B and the 22 nd  camera time information T 22 B. 
       FIG. 11  is a flowchart illustrating an image processing method according to an embodiment. 
       FIG. 12  is a diagram showing a screen of an image processing apparatus according to an embodiment. 
     Referring to  FIGS. 1, 2, 11, and 12 , the database  250  stores position information about the camera  10  (S 1110 ). 
     The communication interface  220  receives first camera information from a first camera configured to recognize the object (S 1120 ). 
     The processor  230  extracts at least one first camera position information, at least one first camera time information, and at least one first camera image information corresponding to one another from the first camera information (S 1130 ). 
     The at least one first camera position information may be, for example, the 11 th  camera position information P 11 B and the 12 th  camera position information P 12 B. The at least one first camera time information may be, for example, the 11 th  camera time information T 11 B and the 12 th  camera time information T 12 B. The at least one first camera image information may be, for example, the 11 th  camera image information and the 12 th  camera image information. 
     The 11 th  camera position information P 11   b , the 11 th  camera time information T 11   b , and the 11 th  camera image information may correspond to one another. The 12 th  camera position information P 12   b,  12 th  camera time information T 12   b , and the 12 th  camera image information may correspond to one another. 
     The processor  230  generates a first screen  1210  including a map displaying the at least one first camera position information, a second screen  1220  including a time bar displaying the at least one first camera time information, and a third screen  1230  for displaying the at least one first camera image information (S 1140 ). 
     For example, the processor  230  may display the 11 th  camera position information P 11 B and the 12 th  camera position information P 12 B on the map of the first screen  1210  and the 11 th  camera time information T 11 B and the 12 th  camera time information T 12 B on the time bar of the second screen  1220 . 
     Then, the user interface  240  receives a user input for selecting an area other than an area of the map where the first camera position information is displayed (S 1151 ). 
     For example, the user interface  240  receives a sixth user input U 6 B for selecting an area between the eleventh camera position information P 11 B and the 12 th  camera position information P 12 B of the first screen  1210 . 
     The processor  230  extracts, from the database  250 , the second camera position information corresponding to the user input (S 1161 ). 
     For example, the processor  230  may extract from the database  250  the 21 st  camera position information P 21 B corresponding to the sixth user input U 6 B. 
     The communication interface  220  receives the second camera information from a second camera corresponding to the second camera position information (S 1171 ). 
     For example, the communication interface  220  may receive the second camera information from the second camera not configured to recognize the object corresponding to the 21 st  camera position information P 21 B. 
     Then, the processor  230  extracts at least one second camera time information and at least one second camera image information corresponding to at least one second camera position information from the second camera information (S 1181 ). 
     For example, the processor  230  may extract from the database  250  the 21 st  camera time information T 21 B and the 21 st  camera image information corresponding to the 21 st  camera position information P 21 B from the second camera information. 
     Meanwhile, the user interface  240  receives a user input for selecting an area other than an area of the time bar where the first camera time information is displayed (S 1152 ). 
     For example, the user interface  240  may receive a seventh user input U 7 B for selecting an area between the 11 th  camera time information T 11 B and the 12 th  camera time information T 12 B of the second screen  1220 . 
     The processor  230  extracts, from the database  250 , second camera time information corresponding to the user input (S 1162 ). 
     For example, the processor  230  may extract, from the database  250 , the 21 st  camera time information T 21 B corresponding to the seventh user input U 7 B. 
     The communication interface  220  receives the second camera information from the second camera corresponding to the second camera time information (S 1172 ). 
     For example, the communication interface  220  may receive the second camera information from the second camera not configured to recognize the object corresponding to the 21 st  camera time information T 21 B. 
     Then, the processor  230  extracts at least one second camera position information and at least one second camera image information corresponding to at least one second camera time information from the second camera information (S 1182 ). 
     For example, the processor  230  may extract from the database  250  the 21 st  camera position information P 21 B and the 21 st  camera image information corresponding to the 21 st  camera time information T 21 B from the second camera information. 
     Then, the processor  230  further displays the second camera position information on the map of the first screen  1210  and the second camera time information on the time bar of the second screen  1220  (S 1190 ). 
     For example, the processor  230  may display the 21 st  camera position information P 21 B on the map of the first screen  1210  and the 21 st  camera time information T 21 B on the time bar of the second screen  1220 . At this time, the 21 st  camera position information P 21 B may be displayed to be distinguished from the 11 th  camera position information P 11 B and the 12 th  camera position information P 12 B, and the 21 st  camera time information T 21 B may be displayed to be distinguished from the 11 th  camera time information T 11 B and the 12 th  camera time information T 12 B. 
       FIG. 13  is a flowchart illustrating an image processing method according to an embodiment. 
     Referring to  FIGS. 1, 2, 9, and 13 , when the user interface  240  receives a user input for selecting predetermined position information (S 1310 ), the processor  230  reproduces predetermined camera image information through the third screen  930  in response to the user input (S 1320 ). 
     For example, when the user interface  240  receives the first user input U 1 B for selecting the 11 th  camera position information P 11 B displayed on a map of the first screen  910 , the processor  230  may reproduce first camera image information through the third screen  930  in response to the first user input U 1 B. 
     For example, when the user interface  240  receives the second user input U 2 B for selecting the 11 th  camera time information T 11 B displayed on a time bar of the second screen  920 , the processor  230  may reproduce the first camera image information through the third screen  930  corresponding to the second user input U 2 B. 
     According to the embodiments of the present disclosure, it is possible to display a map representing a position where an object is photographed, a time bar representing a time at which the object is photographed, and an image of the photographed object on different screens simultaneously. However, as the inventive concept is not limited to the above embodiments, the screens respectively displaying the map and the time bar may be implemented in many different forms to display position information an time information without using the map and the time bar. 
     Therefore, security may be further strengthened, and a security system according to user convenience may be provided. 
     It should be understood that embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as available for other similar features or aspects in other embodiments. 
     While one or more embodiments have been described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the following claims.