JP4933386B2 - Display control apparatus, control method therefor, and program - Google Patents

Description

The present invention is a display control apparatus and a control method thereof, relates to a program, and more particularly to a technique for displaying a frame included in the moving picture.

  With the high performance and low price of digital devices such as digital cameras, digital video cameras and mobile phones, and the increased storage capacity of these devices, it has become possible for individuals to easily record video data. Yes. Along with this, video data owned by individuals has become diverse and enormous. Under such circumstances, there is an increasing need to easily grasp the entire contents of individual moving image data in a short time and to quickly search and reproduce a desired scene in the moving image data.

  Conventional scene search in moving image data is generally performed by sequential search by reproduction from the beginning and fast-forwarding. However, in the scene search, it takes a long time for the user to search for a desired scene.

  As another search method, a plurality of frames (still images) are extracted as index frames from moving image data, and these are indexed as chapters or representative scenes so that a desired scene can be searched. ing.

  However, the index frame used in the index display is a frame selected by the video data creator or a fixed frame automatically selected by various image processing techniques. For this reason, there is a problem that such an index frame does not necessarily match a moving image frame (or scene) desired by the user. As a result, there are cases where it is difficult to grasp the entire video data in a short time and to quickly search for a desired video frame using only the displayed index frames.

In order to solve such a problem, a configuration is known in which a frame to be extracted from moving image data can be changed, and operability is improved when a user searches and reproduces a desired moving image frame (Patent Document). 1, Patent Document 2). In these structures, the index frames representing the contents of the moving image data can be arbitrarily changed and displayed by layering at the time intervals for extracting the frames of the moving image data and switching the layers (time intervals) with a simple operation. .
JP 2006-279267 A JP 2006-186617 A

  However, in the configurations of Patent Documents 1 and 2, for example, when a zoom-in operation for enlarging the index frames displayed in a list is performed and the time interval of the index frames to be displayed is shortened, a moving image is displayed on the screen. It becomes only a part of the data. In order to grasp the entire moving image again, for example, a zoom-out operation or the like is performed, and the index frame when the time interval is long must be displayed again. As a result, layer switching (zoom-in and zoom-out) must be repeated before reaching the target moving image frame, and the user's operation is complicated.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique that makes it possible to grasp the contents of the entire moving image data with a simple operation.

In order to achieve the above object, a display control apparatus according to the present invention comprises the following arrangement. That is,
A display control device that displays a plurality of frames from the start to the end of a moving image on a display means,
Accepting means for accepting selection of a first frame from a plurality of frames from the start to the end of the moving image;
The plurality of frames other than the first frame among the plurality of frames from the start to the end of the moving image at different frame intervals in proportion to the distance on the time axis from the position in the moving image of the first frame. Grouping means for grouping two frames into several groups;
Display control means for displaying on the display means representative frames included in each of a plurality of groups obtained by grouping by the grouping means;
With
The grouping means includes
When grouping the plurality of second frames, as the distance on the time axis from the position of the first frame in the moving image becomes longer, the interval between frames to be grouped as one group is increased.

In order to achieve the above object, a display control apparatus control method according to the present invention comprises the following arrangement. That is,
A control method of a display control apparatus for displaying a plurality of frames from the start to the end of a moving image on a display means,
An accepting step for accepting selection of a first frame from a plurality of frames from the start to the end of the moving image;
The grouping means includes the first frame of the plurality of frames from the start to the end of the moving image at different frame intervals in proportion to the distance on the time axis from the position in the moving image of the first frame. A grouping step of grouping a plurality of second frames other than
A display control step for displaying a representative frame included in each of the plurality of groups obtained by the grouping by the grouping unit on the display unit;
With
In the grouping step, when grouping the plurality of second frames, an interval between frames to be grouped as one group is increased as the distance on the time axis from the position in the moving image of the first frame becomes longer. spread.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which makes it possible to grasp | ascertain the content of the whole moving image data by simple operation can be provided.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. However, the constituent elements described in this embodiment are merely examples, and are not intended to limit the scope of the present invention only to them. In addition, not all the combinations of features described in the present embodiment are essential for the solving means of the invention.

<< First Embodiment >>
(System configuration)
FIG. 1 is a diagram showing a basic system configuration of a moving image display apparatus (display control apparatus) 100 according to the first embodiment of the present invention. As shown in FIG. 1, a display 101 capable of displaying moving image data is connected to the moving image display device 100. Various operation instructions from the user are performed by an operation input device 102 represented by a remote controller (remote controller).

  In the present embodiment, the moving image display apparatus 100 is realized by a set top box. However, the moving image display apparatus 100 may be realized by a digital home appliance such as a home game machine, a digital video disk (DVD) player, a DVD recorder, a digital camera, a digital video camera, a thin television receiver, or the like. Alternatively, it may be realized by an information processing apparatus such as a personal computer (PC), a workstation, or a personal digital assistant (PDA), a mobile phone, and an electronic component such as a semiconductor integrated circuit.

  Further, the operation input device 102 may be realized by a keyboard, a pointing device, a touch panel, or the like.

(Hardware configuration)
FIG. 2 is a hardware configuration diagram of the moving image display apparatus 100 according to the present embodiment. As shown in FIG. 2, the hardware of the moving image display apparatus 100 includes a CPU 201, a RAM 202, a ROM 203, and a display interface (display I / F) 204. Further, a storage interface (storage I / F) 205, a storage 206, and a remote control interface (remote control I / F) 207 are provided.

  The CPU 201 executes an application program, an operating system (OS), a control program, and the like stored in the storage 206. Then, the RAM 202 is controlled to temporarily store information, files, etc. necessary for program execution.

  A ROM 203 is a read-only memory, and stores therein various data such as programs such as basic I / O programs, font data used in basic processing, and template data. A RAM 202 is a writable memory, temporarily stores various data, and functions as a main memory, a work area, and the like of the CPU 201.

  The display interface 204 converts screen information generated inside the video display device 100 into a signal that can be processed by the display 101. The storage interface 205 converts between a data format that can be used inside the moving image display device 100 and a data format that is stored in the storage. The remote control interface 207 receives a signal from the operation input device 102 and converts it into information that can be processed by the video display device 100.

  Although not shown in FIG. 2, the OS, each processing program according to the present invention, a device driver, and the like are stored in the ROM 203, temporarily stored in the RAM 202 as appropriate, and executed by the CPU 201. Here, the OS may be stored in the storage 206. In this case, the OS is appropriately read into the RAM 202 when the power is turned on, and is started by the CPU 201. The storage 206 stores a large amount of data to be searched and reproduced by the moving image display device 100, and may be mounted inside the moving image display device 100, or via various interfaces such as Ethernet (registered trademark) and USB. It may be connected. At that time, a plurality of storages 206 may be connected.

  In the following description, unless otherwise specified, the same reference numerals are given to those described with reference to other drawings, and the description thereof is omitted.

(Functional configuration)
FIG. 3 is a functional block diagram of the moving image display apparatus 100 according to the present embodiment. As shown in FIG. 3, the moving image display apparatus 100 includes an operation acquisition unit 301, a display output unit 302, a display switching unit 303, an index screen creation unit 304, an index frame generation unit 305, a frame grouping unit 306, and a frame position detection unit. 307. Furthermore, a moving image data storage unit 308, a frame data acquisition unit 309, a decoder 310, and an operation analysis unit 311 are provided. Each of these functional blocks can be realized in various forms by a combination of hardware and software.

  The moving image data storage unit 308 stores a large amount of moving image data to be searched for and reproduced by the moving image display device 100. In the present embodiment, the moving image stored in the moving image data storage unit 308 is moving image data including a plurality of frames. However, the moving image stored in the moving image data storage unit 308 is not limited to only a plurality of moving image frames, and any format of moving image data can be used as long as it can be converted into a frame format usable in this embodiment. It does not matter. For example, MPEG-2 data has I, P, and B frames, but in this embodiment, P frames and B frames subjected to inter-frame compression based on differences from other frames are not stored. Only I frames that have only undergone spatial compression can be stored. Further, for example, in Motion JPEG, all the frames may be stored in the moving image data storage unit 308.

  The frame data acquisition unit 309 sequentially reads frame data from the moving image data storage unit 308. The frame position detection unit 307 detects the position of the read frame in the moving image data. The detected frame position information is held in the RAM 202 of the moving image display device 100 and used by the frame grouping unit 306.

  The frame grouping unit 306 performs grouping at different frame intervals proportional to the distance from the detected frame position. The index frame generation unit 305 extracts a representative frame from the group grouped by the frame grouping unit 306 and creates an index frame.

  The index screen creation unit 304 creates a screen in which a plurality of index frames created by the index frame generation unit 305 are arranged in frame order. The created index screen is output from the display output unit 302 to the display 101 such as a digital TV via the display switching unit 303.

  The operation acquisition unit 301 acquires the operation content from the user from the remote control interface 207. The operation analysis unit 311 analyzes the operation content acquired by the operation acquisition unit 301. The display switching unit 303 switches the display of the index screen as desired by the user based on the analysis result by the operation analysis unit 311. The frame data acquisition unit 309 acquires a user-desired moving image based on the analysis result by the operation analysis unit 311. The decoder 310 acquires an image by decoding the frame acquired by the frame data acquisition unit 309.

(Operation input device)
The user confirms the screen output on the display 101 and uses the operation input device 102 to perform various operations on the moving image display device 100. FIG. 4 is a diagram illustrating an example of the operation input device 102 for operating the moving image display device 100.

  In this embodiment, the operation input device is a remote controller 400. The remote control 400 includes left and right buttons 402 and 405 for changing the focused frame, and an OK button 403 for confirming selection of the focused frame. In the present embodiment, when a frame selection confirmation operation is performed with the OK button 403, moving image data can be reproduced from the selected frame position. Although not used in the present embodiment, the remote control 400 also includes up and down buttons 401 and 404.

  Various operations instructed by the user using the remote controller 400 are taken into the moving image display device 100 via the operation acquisition unit 301, and the results analyzed by the operation analysis unit are fed back to the display switching unit 303 and the frame data acquisition unit 309. Is done.

(Overhead view index display processing)
FIG. 5 is a flowchart showing a main flow of the overhead index display processing executed by the moving image display apparatus 100 in the present embodiment. The details of the overhead index display processing in the present embodiment will be described with reference to this flowchart. The processing of the following steps is executed based on the control of the CPU 201.

  As shown in FIG. 5, when the index display for overhead view is started in the moving image display device 100, the moving image display device 100 first acquires the total number of frames of moving image data on which index display is performed (step S10). The acquired value is stored in the variable sum.

  Next, the moving image display apparatus 100 focuses on the first frame of the moving image data for index display (step S11).

  Next, an index display screen initially displayed based on the top frame is created (step S12). The initial index display screen created at this time will be described with reference to FIG. FIG. 11 is a diagram showing an example of the initial index display screen.

  As shown in FIG. 11, the focused frame (first frame) and the index frame (second frame) are displayed in the order of the frames. In the present embodiment, the focused frame is distinguished by being displayed in a size larger than the index frame. However, the focused frame may be distinguished and displayed by color or shape. Details of the processing for displaying the index screen will be described later.

  The user uses the initial index display screen displayed on the display 101 and the remote controller 400 to instruct the moving image display apparatus 100. When the left and right keys (402, 405) of remote controller 400 are pressed (YES in step S13), moving image display apparatus 100 moves the focused frame to the left or right (step S14).

  Then, an index display screen is created again based on the newly focused frame (step S15). Details of the processing for displaying the index screen will be described later.

  Next, it is updated and displayed on the display 101 (step S16). The index display screen created at this time will be described with reference to FIG. FIG. 12 shows an example of the index display screen.

  As shown in FIG. 12, the moving image display apparatus 100 performs index display in the vicinity of the focused frame at fine (small) frame intervals and at a distant place with coarse (large) frame intervals. The user can select a frame displayed in this manner by pressing the OK button 403 of the remote controller 400, and can play a moving image from the selected frame.

  When an instruction to end index display is given (YES in step S17), the moving image display apparatus 100 ends the main flow of the index display process for overhead view shown in FIG.

(Index screen creation process)
Next, the index screen creation process executed in steps S12 and S15 of the flowchart of FIG. 5 will be described with reference to FIGS. FIG. 6 is a diagram for explaining an algorithm for creating an index screen in the present embodiment, and FIGS. 7 and 8 are flowcharts showing a flow of index screen creation processing.

  As shown in FIG. 6, in the index screen creation process, frames are grouped at equal distances before and after the focused frame position x, that is, at equal frame intervals, and a representative index frame is extracted from the group. To do. Hereinafter, the flow of the index screen creation process will be described with reference to FIGS.

  As shown in FIG. 7, when the index screen creation process is started, an initialization process (step S20) is first performed. FIG. 9 is a flowchart showing the process flow of the initialization process.

  In the initialization process, first, an incremental frame interval is set (step S50). Index frames generated in the moving image display apparatus 100 are representative frames of groups grouped at different frame intervals. By appropriately setting this incremental frame interval, grouping at various frame intervals becomes possible. In the present embodiment, the incremental frame interval is set to Δf as described above, and the frame interval is increased in proportion to the distance from the focus frame position. However, other than this, for example, the increment frame interval may be set to decrease according to the position of the focus frame, or may be increased in a quadratic curve.

  Next, the initial frame interval is set to F01 = 0 and F02 = 0 (step S51), and the index display number is set to I (step S52). The index display number I is a constant indicating the number of index frames to be displayed on the screen. For example, when six index frames are displayed in the index display, I = 6 is set.

Next, a variable i for holding the number of index frames created in the index screen creation process is initialized to 0 (step S53). Then, the process count initialization cnt — 01 = 1, cnt — 02 = 1 (step S54), and check flag initialization chk — 01 = false, chk — 02 = false (step S55) are performed.

Here, the check flag chk_01 is a flag indicating whether or not frame acquisition after the focused frame has been completed, in other words, whether or not further frames after the focused frame can be acquired. . chk_01 = false indicates that frame acquisition has not been completed, that is, further frames can be acquired, and chk_01 = true indicates that frame acquisition has been completed. Similarly, the check flag chk_02 is a flag indicating whether or not acquisition of a frame from the front of the focused frame is completed, in other words, whether or not a frame before the focused frame can be further acquired. . This completes the initialization process flow and returns to the index screen creation process flow.

  Returning to the description of FIG. When the initialization process (step S20) ends, the position of the focused frame in the moving image data is detected and held in the variable x (step S21).

  Next, it is determined whether chk_01 == false, that is, whether chk_01 is false (step S22). If chk_01 is true (NO in step S22), the process proceeds to step S23, and if false (YES in step S22), the process proceeds to step S24.

  In step S23, it is further determined that chk_02 == true. If chk_02 is false (NO in step S23), the process proceeds to step S34, and if true (YES in step S23), the process flow proceeds to step S45.

  In step S24, a frame n whose frame interval from x is F01 is acquired. Next, sum> = n is determined (step S25), and if sum <n (NO in step S25), the process proceeds to step S26, and if sum> = n (YES in step S25), the process proceeds to step S27. Transition.

  In step S26, true is set in chk_01. Then, the process flow moves to step S34.

  In step S27, a frame n_1 having a frame interval from x of F01 = F01 + cnt_01 * Δf is acquired (step S27). Next, sum> = n_1 is determined (step S28). If sum> = n_1 (YES in step S28), the process proceeds to step S29. If sum <n_1 (NO in step S28), the process proceeds to step S30. Transition.

  In step S29, frames between n and n_1 are grouped. Then, the process proceeds to step S31.

  On the other hand, in step S30, frames between n and sum are grouped. Then, the process proceeds to step S31.

  In step S31, an index frame is generated from the grouped frames by an index frame generation process. Details of the index frame generation process (step S31) will be described later.

  When an index frame is generated from the grouped frames (step S31), next, the processing count cnt_01 and the number i of the generated index frames are respectively incremented (step S32).

  Next, it is determined whether or not the total number of index frames generated at this time is equal to the number I of index frames that can be displayed. If they are not equal (NO in step S33), the process proceeds to step S34. If they are equal (YES in step S33), the process proceeds to step S45.

  Next, the second half of the index screen creation process will be described in detail with reference to FIG. In step S34, chk_02 == false is determined. If chk_02 is true (NO in step S34), the process proceeds to step S35, and if chk_02 is false (YES in step S34), the process proceeds to step S36.

  In step S35, it is further determined that chk_01 == true. If chk_01 is true (YES in step S35), the process proceeds to step S45, and if false (NO in step S35), the process proceeds to step S22.

  On the other hand, in step S36, a frame m whose frame interval from x is F02 is acquired. Next, m> 1 is determined (step S37). If m <= 1 (NO in step S37), the process proceeds to step S34, and if m> 1 (YES in step S37), the process proceeds to step S38.

  In step S34, true is set in chk_02, and the process flow proceeds to step S22.

  On the other hand, in step S38, a frame m_1 with a frame interval from x further F02 = F02−cnt — 02 * Δf is acquired.

  Next, it is determined that m_1> = 1 (step S39). If m_1> = 1 (YES in step S39), the process proceeds to step S40. If m_1 <1 (NO in step S39), the process proceeds to step S41.

  In step S40, frames between m and m_1 are grouped. Then, the process proceeds to step S42.

  In step S41, frames between 1 and m are grouped. Then, the process proceeds to step S42.

  In step S42, an index frame is generated by the index frame generation process from the frames grouped in step S40 or S41. Details of the index frame generation processing (step S42) will be described later.

  When an index frame is generated from the grouped frames (step S42), the processing count cnt_02 and the number i of the generated index frames are respectively incremented (step S43).

  Next, it is determined whether or not the total number i of index frames generated so far is equal to the number I of index frames that can be displayed. If not equal (NO in step S44), the process proceeds to step S22, and if equal (YES in step S44), the process proceeds to step S45. In step S45, the focused frame and the generated index frame are aligned in frame order. In step S46, an overhead index screen is created as an output screen.

  With the above processing, the index screen creation processing is completed, and the created index screen is returned to the main flow of the moving image display device 100 and displayed on the display 101.

(Index frame generation processing)
Next, with reference to FIG. 10, the operation | movement of the index frame production | generation process (step S31, S42) in this embodiment is demonstrated. FIG. 10 is a flowchart showing the flow of index frame generation processing.

  When the index frame generation process is started, a representative frame is first cut out (acquired) from the group (step S60). In this embodiment, the last frame of the group is cut out as a frame representing the group. Of course, a frame at the head of the group, a frame selected by an image processing technique, a chapter frame recorded in advance in moving image data, or the like may be cut out preferentially as a representative frame.

  Next, additional information of the cut frame is held (step S60), and an index frame is generated based on the information (step S62). With the above processing, the index frame generation processing is completed, and the result is returned to the calling process.

  As described above, the configuration according to the present embodiment performs reception processing for receiving selection of a focus frame (first frame) included in a moving image, and includes a plurality of index frames (at least before and after the focus frame). 2nd frame) is acquired. Then, display control processing for displaying the thumbnail of the focus frame and the thumbnails of the plurality of index frames on the display 101 is performed. Here, the index frame is acquired so that the frame interval between the focus frames or the plurality of index frames adjacent to each other in the moving image display apparatus 100 increases as the adjacent frames move away from the focus frame.

  For this reason, according to the configuration according to the present embodiment, an index frame for overlooking the moving image content is displayed according to the selection of the moving image frame, so that the user can easily grasp the rough flow of the moving image content. it can. In addition, since the index frame interval is set narrow in the vicinity of the focus frame position and wide in the distance, it is possible to grasp the flow of moving images at different frame intervals. The user can check the frame in the vicinity of the focus frame of interest, and at the same time, can check the rough change of the video in the distance from the focus frame, and can easily find the desired scene. . Therefore, the user can grasp the contents of the entire moving image data with a simple operation.

  In addition, the moving image display apparatus 100 displays a scroll area corresponding to the time axis of the moving image on the display 101, and scrolls and displays the focused frame position in the scroll area in accordance with the scroll operation from the user. . Then, in response to the user's scroll operation, a frame corresponding to the focused frame position is accepted as a focus frame selection. For this reason, the user can grasp the contents of the entire moving image data only by a simple operation of scrolling.

  In addition, the moving image display apparatus 100 acquires index frames so that the frame interval between index frames adjacent to each other is a multiple of the distance between the focus frame and the index frame adjacent to the focus frame. Since the index frames are regularly acquired in this way, the user can grasp the contents of the entire moving image data with a simple operation.

  In addition, the moving image display apparatus 100 divides frames included in the moving image into a plurality of groups, and acquires a representative frame from each of the groups as an index frame. Thus, since the index frame is a frame representing each group, the user can easily grasp the contents of the entire moving image data by referring to the thumbnail of the index frame.

  In addition, the moving image display apparatus 100 controls to reproduce a moving image from the focus frame in accordance with an instruction from the user. For this reason, the user can check the contents by playing a moving image from a desired frame.

  In addition, the moving image display apparatus 100 updates the bird's-eye view index display one after another as the focused frame moves. As a result, it is possible to grasp the rough flow of moving image data in a simpler and shorter time than simply displaying moving image frames one by one.

<< Second Embodiment >>
Next, a second embodiment of the present invention will be described in detail with reference to the drawings. This embodiment is different from the first embodiment in that an overhead index display created in the index screen creation process is output together with the scroll display of the moving image frame.

  Here, the system configuration diagram and the hardware configuration diagram are the same as those in the first embodiment described with reference to FIGS. The functional block diagram is the same as that of the first embodiment using FIG. The operation input device for operating the moving image display device 100 is the same as that in the first embodiment described with reference to FIG. The main flow process and the overhead index display process flow of the moving image display apparatus 100 are also the same as those in the first embodiment described with reference to FIGS. Also in this embodiment, unless otherwise specified, the same reference numerals are given to those described with reference to other drawings, and the description thereof is omitted.

  FIG. 13 and FIG. 14 are diagrams illustrating an example of a screen display output in the present embodiment. FIG. 13 is an initial index display when the moving image display apparatus 100 starts the overhead index display. As the focused frame scrolls, the index display as shown in FIG. 14 is sequentially updated and displayed. The user can select a frame displayed at this time by pressing the OK button 403 of the remote controller 400, thereby reproducing a moving image from the selected frame.

  In the present embodiment, the scroll display of the moving image frame is displayed at the lower part of the display screen, and the overhead index display is displayed at the upper part of the display screen, but this is not restrictive. In the scroll display of video frames, the focused frame is displayed in a size larger than other frames to distinguish the focused frame from other frames. It doesn't matter.

  In the present embodiment, in addition to the scroll display of the moving image frame, the index display that is sequentially updated according to the scroll display position is simultaneously displayed as an overhead view display. Thereby, the operativity with respect to the scroll operation at the time of a moving image frame search can be improved. This will be briefly described with reference to FIG. FIG. 15 is a diagram for explaining that the operability is improved in the moving picture frame search.

  For example, when the focused frame in the moving image data is at a position as shown in FIG. 15 and the CM has a length (1505) as shown in the drawing, it is easy to use the moving image display apparatus 100 according to this embodiment. It becomes possible to skip the CM. Here, reference numerals 1501 to 1504 denote groups with different frame intervals grouped by the frame grouping unit 306. The index frame cut out from each group is generated by the index frame generation unit 305, and is the last frame of each group in this embodiment.

  At this time, by referring to the index frame of the frame group 1501, it can be confirmed that this frame range is still in the CM. Further, referring to the index frame of the group 1502, it can be confirmed that this frame range is still in the CM. Similarly, it can be confirmed that the frame range of the group 1503 is also in the CM. Then, referring to the index thumbnail of the group 1504, it can be confirmed that the CM has already ended and the main part has begun. Therefore, it can be determined that the frames between the frame groups 1501 to 1503 may be skipped at high speed by scrolling.

  As described above, in the present embodiment, index frames are displayed with different frame intervals (granularity) such as a fine frame interval near the focused frame and a distant frame coarse. As a result, the user can easily determine the frame range that can be skipped. If index frames are displayed only at fine frame intervals, the number of determinations until skip determination increases. Conversely, if index frames are displayed only at coarse frame intervals, there is a high possibility that the cuts between the CM and the main part cannot be captured. On the other hand, in this embodiment, when searching for moving image data, if a desired moving image scene is not nearby, index frames can be displayed at different intervals (granularity). Therefore, the user can skip more frames with a smaller number of determinations.

  In addition, the moving image display apparatus 100 displays a predetermined number of consecutive frame thumbnails on the display 101 from at least one of the front and rear of the focus frame. For this reason, the user can select the focus frame more easily and appropriately by checking before and after the focus frame.

<< Other Embodiments >>
The exemplary embodiments of the present invention have been described in detail above. However, the present invention can take embodiments as, for example, a system, apparatus, method, program, or storage medium. Specifically, the present invention may be applied to a system composed of a plurality of devices, or may be applied to an apparatus composed of a single device.

  An object of the present invention is to supply a program that realizes the functions of the above-described embodiments directly or remotely to a system or apparatus, and the computer of the system or apparatus reads and executes the supplied program code. May also be achieved.

  Therefore, since the functions of the present invention are implemented by a computer, the program code installed in the computer is also included in the technical scope of the present invention. That is, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, and the like.

  Examples of the recording medium for supplying the program include the following. That is, flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), etc. included.

  In addition, the following types of programs may be considered. That is, it is also possible to connect to a homepage on the Internet using a browser of a client device and download a computer program according to the present invention or a compressed file including an automatic installation function from the homepage to a recording medium such as an HD. It can also be realized by dividing the program code constituting the program according to the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  The following supply forms are also conceivable. That is, first, the program according to the present invention is encrypted, stored in a computer-readable storage medium such as a CD-ROM, and distributed to users. Further, the present invention allows a user who has cleared a predetermined condition to download key information to be decrypted from a homepage via the Internet, execute a program encrypted by using the key information, and install the program on a computer. The structure which concerns on is implement | achieved. Such a supply form is also possible.

  In addition to realizing the functions of the above-described embodiments by the computer executing the read program, the following implementation modes are also assumed. In other words, based on the instructions of the program, the OS running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can be realized by the processing.

  Further, after the program read from the recording medium is written in the memory provided in the function expansion board inserted in the computer or the function expansion unit connected to the computer, the above-described embodiment is also based on the instructions of the program. The function is realized. That is, a CPU or the like provided in the function expansion board or function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

  As described above, according to this configuration, the user can grasp the rough flow of moving image data more easily and in a short time by using the index display that is sequentially updated.

  Further, in this configuration, in addition to the scroll display of the moving image frame, the index display that is sequentially updated in conjunction with the scroll display position is simultaneously displayed as an overhead view display. Thereby, it becomes possible to improve the operability with respect to the scroll operation at the time of moving picture frame search. At this time, in this configuration, the frames are grouped at different frame intervals in proportion to the distance from the scroll position, and the index frame is taken out from the group. Thereby, the user can grasp the flow of the moving image at different frame intervals (granularity). That is, when the desired moving image scene is not nearby, the user determines how far to skip the moving image frame by using the overhead view index display displayed at different frame intervals (granularity). be able to.

It is a figure which shows the basic system configuration | structure of a moving image display apparatus. It is a hardware block diagram of a moving image display apparatus. It is a functional block diagram of a moving image display device. It is a figure which shows an example of the operation input apparatus for operating a moving image display apparatus. It is a flowchart which shows the main flow of the index display process for bird's-eye views. It is a figure explaining the algorithm of index screen creation. It is a flowchart which shows the flow of an index screen creation process. It is a flowchart which shows the flow of an index screen creation process. It is a flowchart which shows the processing flow of an initialization process. It is a flowchart which shows the flow of an index frame production | generation process. It is a figure which shows an example of an initial index display screen. It is a figure which shows an example of an index display screen. It is a figure which shows an example of the screen display output. It is a figure which shows an example of the screen display output. It is a figure explaining operativity improving in animation frame search.

Claims (8)

A display control device that displays a plurality of frames from the start to the end of a moving image on a display means so as to be able to look down,
Accepting means for accepting selection of a first frame from a plurality of frames from the start to the end of the moving image;
The plurality of frames other than the first frame among the plurality of frames from the start to the end of the moving image at different frame intervals in proportion to the distance on the time axis from the position in the moving image of the first frame. Grouping means for grouping two frames into several groups;
Display control means for displaying on the display means representative frames included in each of a plurality of groups obtained by grouping by the grouping means;
With
The grouping means includes
In the grouping of the plurality of second frames, the interval between frames grouped as one group is increased as the distance on the time axis from the position in the moving image of the first frame increases. Control device. The display control means includes
A scroll area corresponding to the time axis of the moving image is further displayed on the display means;
The accepting means is
The display control apparatus according to claim 1, wherein selection of the first frame is received in accordance with a scroll operation from a user in the scroll area. The grouping means includes
  When grouping the plurality of second frames, as the distance on the time axis from the position of the first frame in the moving image becomes longer, the interval between frames to be grouped as one group is increased by a multiple.
  The display control apparatus according to claim 1, wherein the display control apparatus is a display control apparatus. The display control means, in addition to the first and second frames,
Of the first frame, from the front and at least one post, according to any one of claims 1 to 3 also consecutive frames of a predetermined number and displaying on said display means Display control device. The display control device according to any one of claims 1 to 4, characterized in that it comprises further control means for controlling to reproduce the moving image from the first frame in response to an instruction from the user. The display control means includes
  The positions in the moving image corresponding to the first frame and the second frame are connected and displayed.
  The display control apparatus according to claim 1, wherein the display control apparatus is a display control apparatus. A control method of a display control device that displays a plurality of frames from the start to the end of a moving image on a display means so as to be able to look down,
An accepting step for accepting selection of a first frame from a plurality of frames from the start to the end of the moving image;
The grouping means includes the first frame of the plurality of frames from the start to the end of the moving image at different frame intervals in proportion to the distance on the time axis from the position in the moving image of the first frame. A grouping step of grouping a plurality of second frames other than
A display control step for displaying a representative frame included in each of the plurality of groups obtained by the grouping by the grouping unit on the display unit;
With
In the grouping step, when grouping the plurality of second frames, an interval between frames to be grouped as one group is increased as the distance on the time axis from the position in the moving image of the first frame becomes longer. A control method for a display control device, characterized in that the display control device is expanded . The program for functioning a computer as a display control apparatus of any one of Claims 1 thru | or 6 .

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