Video image bank

Abstract: A video image bank system for preparing an edit tape and associated edit list from a library of stock video image sequences uses a set of video disks (24) with an associated library index. A microprocessor (32) or personal computer (12) is loaded with the library index, and an operator selects an initial set of image sequences from a menu or by using key words, specifically or highlighted in a word processor text file, for a desired effect. Groups of still frames, one from each identified image sequence, are displayed and the operator selects any one of the represented image sequences for addition to the edit tape (30) and the associated edit list (28). Once all the desired stock video image sequences have been selected from the library and transferred to the edit tape and associated edit list, these sequences may readily be added to a production video sequence using normal editing procedures.

Description: Background of the Invention The present invention relates to video production, and more particularly to a video image bank that provides thousands of stock footage image sequences for immediate use by the producer of a video tape in preparing a story board and/or edit tape. Television is a commonplace part of people's lives, and unless the video viewed is exciting people become bored. They expect all video to be up to the quality of normal broadcast programming. The cost of producing broadcast quality programming for a small producer, such as for industrial and training tapes, is quite high. Even attempts to highlight industrial productions by interjecting exciting stock footage are insufficient because the time and cost involved limits the use. Further the cost of just maintaining a library of such stock footage is in itself quite expensive for a small producer, as it requires many different reels of video tape to be maintained. These tapes are difficult and time consuming to use since, even if indexed, the tapes have to be searched for the desired footage before that footage can be edited into a production tape. As the video market continues to grow the need for inexpensive means of production continues to expand. The standard way of cutting production costs has been the use of stock footage, but the cost and time involved in locating and acquiring stock footage is a major problem for the small producer. A related problem for the small producer, especially in the industrial production area, is that the producer is used to writing out copy, but is unfamiliar or uncomfortable with video concepts. Therefore such productions based upon such written copy tend to be stilted with all the drawbacks of non-broadcast quality video. Therefore, what is desired is an apparatus for storing stock video footage in a compact, random access manner so that any footage desired may be retrieved virtually instantaneously to reduce the expense of storing the footage and the expense of producing video tapes that are interjected with such stock footages, including the ability to use written copy as an index into the stored stock video footage. A still video storage and retrieval system according to the preamble of claim 1 is known from Rundfunktechnische Mitteilungen 32 (1988) July/August No. 4. Summary of the Invention According to a first aspect of this invention there is provided a video image bank as claimed in claim 1 herein. According to a second aspect of this invention there is provided a method as claimed in claim 5 herein. Accordingly the present invention provides a video image bank in the form of a visual effects library for video production that puts thousands of exciting stock image sequences at the fingertips of a video producer. The library is stored on video disk and indexed on computer disks, and includes appropriate audio sound effects to provide a complete system. The computer index is cross references to allow the user to find appropriate audio and video sequences by key word search of a written production script. The system accepts standard text formats so that scripts can be run through, and is compatible with personal computers so that lower priced versions take advantage of equipment already owned by the user. The library may reside in an automated disk changer to reduce access time. The hardware includes a set of video disks with optional changing mechanisms, a microprocessor controller and a disk player as well as a computer display. The software for the controller includes a program to index the visual information of the disks, the program being menu driven and allowing for the cross referencing of image sequences under a number of headings, and also allows for a number of still frames from the image sequences to be displayed. The program may access highlighted words from the written production script for use as key words to access the index and identify potential image sequences. The objects, advantages and novel features of the present invention are apparent from the following detailed description when read in conjunction with the appended claims and attached drawing. Brief Description of the Drawing Fig. 1 is a block diagram of a first embodiment for a video image bank system according to the present invention. Fig. 2 is a block diagram of a second embodiment for a video image bank system according to the present invention. Fig. 3 is a block diagram of a third embodiment for a video image bank system according to the present invention. Fig. 4 is a representative flow chart diagram for the controller of a video image bank system according to the present invention. Description of the Preferred Embodiment Referring now to Fig. 1 a video image bank system 10 is shown based upon a personal computer 12 having a keyboard 14, a display device 16 and a microprocessor 18. The microprocessor 18 includes a hard disk drive 20 as well as floppy disk drives 22. A video library index is loaded via the floppy disk drives 22 onto the hard disk drive 20. The supporting software also is loaded onto the hard disk drive. Using the keyboard and appropriate menus displayed on the display device 16 a particular video disk and track(s) are identified that have video image sequences corresponding to a desired selected menu item or highlighted key word in a word processor text file. The appropriate video disk from the library 24 is manually loaded into a video disk player 26 and a still frame from each appropriate track of the disk is displayed automatically on the display device 16 under control of the microprocessor 18. From the still frames one image sequence is selected by the user for viewing and, if acceptable, for storing as part of an edit list 28 or part of the word processor text file to create a story board, and/or the image sequence is recorded on a video cassette 30. A producer with no familiarity with television productions may write a script, highlighting key words where stock footage material is desired. The program in the microprocessor uses the key words as indices to the library index, and identifies various stock footages that exemplify the highlighted key words. The producer then may display from the identified library disks a still frame for each of the identified stock footages on that disk. For example if the key word is "crash", then the program identifies all stock footages that involve crashes -- airplane, car, train, boat, etc. Stills from each identified stock footage that is on a particular disk mounted for play back are displayed and the producer selects which one(s) are desired for further review. The selected footages may be played back in full from the disk so the producer can see whether that particular footage is appropriate. When the producer finally selects a particular stock footage for that key word, then the identification of the stock footage is inserted into the written script, or word processor text file, to form a story board. Further the program acts heuristically by associating the key word and the selected footage with each other and with the producer so that when the producer again highlights as a key word "crash", the program first calls up what the producer previously selected for that key word together with closely related alternatives. Thus if the producer selected a particular car crash, the next time the producer uses that key word, that previously selected car crash footage and other car crash footages will be selected for display by the program, ignoring boat, airplane and train crashes. Fig. 2 shows a more expensive version of the video image bank 10' that uses a dedicated microprocessor 32 together with an appropriate keyboard 34 and monitor 36. The microprocessor 32 controls the disk player 26 as well as a video disk changer 38 that contains a limited version of the video disk library. Again as in the personal computer version, the software operates in the same manner, using the loaded video index 20 to identify the particular disk(s) and track(s) that contain desired image sequences selected from a menu or highlighted key words displayed on the monitor 36. A still frame from each selected image sequence (up to, for example, eight) automatically is displayed on the monitor 36, and the operator selects any still frame. The selected footage is run from the disk player 26 and, if the image sequence is acceptable, then it is added to the edit list 28 or inserted into a story board, and the sequence may be stored on a broadcast quality tape 40. The final version of the video image bank system 10", shown in Fig. 3, uses a changer 38' that has an increased disk storage capability together with two video disk players 26 to decrease access speed to the image sequences. Such a video changer that includes the video disk players is the VIDEOBOX digital video music system by Videobox Networks Inc. of New York City, New York that permits storage and retrieval of thirty two-sided laser disks. Again the software operation is the same as for the other versions. The edit lists 28 or story boards and video tapes 30, 40 generated by this system are then used with a regular edit system to generate the desired final video product. The microprocessor/personal computer 32, 12 may also be used to add scripts or compatible text editing to the image sequences. Searching may also be done on key words contained in the data index 20, which key words may be expanded by the user. In this manner a user may search and easily extract from a video library image sequences that are desired for use in a final video product, and transfer those desired sequences to an edit tape together with an associated edit list. Then these sequences may readily be interjected into the final video product using normal video editing techniques. As shown in Fig. 4 the video image bank system is initialized with the library index for the set of video disks provided to the user, the library index also including a key word index. The operator selects from a menu or via key words a plurality of image sequences as an initial selection. These image sequences basically include material that is in the public domain, such as material from government sources and film libraries, as well as separately purchased specialized material. The image sequences are cross referenced so that, for example, a nuclear explosion may be accessed under explosion, atomic energy and destruction. Once the image sequences are identified, then the appropriate disk(s) is transferred to the disk player 26, either manually or via the automatic changer 36, 36'. A still frame from each identified image sequence is displayed on the monitor in groups of, for example, eight, and the operator may select any one for running to observe whether it is suitable for the particular purpose the operator may have. Once one of the image sequences is accepted, the image sequence is transferred to an output video tape and an edit list for that tape is prepared. For each acceptable image sequence the corresponding video is transferred to the tape and the edit list is updated. After all the desired standard video stock footages are transferred from the library to the output tape, the output tape and associated edit list may be used by a standard editing system to interject the selected image sequences into the appropriate locations in the final video product. Thus the present invention provides a video image bank system that allows an operator to readily select a desired video image sequence from a library of image sequences and transfer it to an edit tape together with an edit list so that final editing of a video product may be performed quickly and efficiently.

Claims: A video image bank for automatically accessing a plurality of video images comprises: means for accessing (12; 32) a library index for a set of video storage sources (24; 38), the video storage sources containing a library of the video images, to automatically identify an initial set of the video images for a desired effect; means for displaying (16; 36) the initial set of video images in the form of a still frame; and means for selecting (14;34) one of the video images from the initial set as the desired effect; characterised in that the video images are motion video sequences, which are stored in said library index, said means for accessing (12; 32) automatically identifies an initial set of the motion video image sequences for said desired effect, said means for displaying (16; 36) displays a still frame from each of said motion video image sequences of the initial set; said means for selecting (14; 34), selects one of the video image sequences from the initial set as the desired video image sequence; and said means for displaying (16; 36) further comprises means for viewing said desired motion video image sequence. A video image bank as recited in claim 1 wherein the means for accessing comprises: a controller (18; 32) having a stored program and the library index; means for interacting (14; 34) with the controller to provide inputs to the stored program, the stored program accessing the library index according to the provided inputs; and means for identifying (14, 16,18; 32, 34, 36) the initial set of the motion video image sequences associated with the accessed library index. A video image bank as recited in claim 2 wherein the displaying means comprises: a video monitor (16; 36); a video storage source playback device (26); means for retrieving (18; 32) from the video storage source playback device the initial set of motion video image sequences; and means for formatting (18; 32) the still frame for each motion video image sequence of the initial set for display on the video monitor. A video image bank as recited in claim 1 further comprising means for storing (28) the selected motion video image sequence on an output video storage device (30). A method of automatically accessing a plurality of motion video image sequences comprising the steps of: accessing a library index for a set of video storage sources, the motion video storage sources containing a library of the motion video image sequences, to automatically identify an initial set of the motion video image sequences for a desired effect; displaying the initial set of motion video image sequences in the form of a still frame from each motion video image sequence of the initial set; selecting one of the motion video image sequences from the initial set as the desired motion video image sequence; and displaying said desired motion video image sequence.

Inventors: ETRA WILLIAM, ETRA, WILLIAM
Applicants: GRASS VALLEY GROUP, THE GRASS VALLEY GROUP, INC.
Application year: 1990
Main classification: G11B27
IPC codes: G11B27, H04N5