JP4539884B2 - Reproducing apparatus, program, and method for constructing electronic screen - Google Patents

Description

  The present invention relates to a playback apparatus and a program for playing back moving image content. More specifically, the present invention relates to a playback apparatus and program for acquiring a thumbnail from the moving image content and constructing an electronic screen for displaying the thumbnail.

  As related techniques, Patent Documents 1 to 3 describe a playback apparatus that decompresses moving image content compressed using moving image compression technology such as MPEG (Moving Picture Experts Group).

  Japanese Patent Application Laid-Open No. 2004-133620 describes a playback apparatus that can play back video content by providing a general information processing apparatus with a video decoder using software or hardware. In Patent Document 1, a playback device has an image processing unit, and can process and synthesize information (image) decoded by a video decoder by a DSP (Digital Signal Processor) or the like to construct an electronic screen. There is disclosed a technique capable of preventing an excessive skip of (commercial message).

  Patent Document 2 describes a DVD playback device (optical disk device). Instead of the conventional skip, both the fast-forward function and the time search function (jump) are used for skipping, and the skip operation is performed in the conventional manner. A technique is described that enables fast-forwarding of intermediate images in the same manner as a video deck, and enables playback from a skip destination position accurately.

  In Patent Document 3, a thumbnail is automatically created, and a plurality of thumbnails are displayed on the electronic screen during a skip operation during reproduction of moving image content, so that a target moving image reproduction start position (skip stop position) can be searched. The technology is described.

JP 2005-182869 A JP 2005-327348 A JP 2007-116472 A

  As described in the above patent document, as a method of skipping moving image content, a method of not displaying video up to a predetermined skip position (time), and combining and playing thumbnails at positions (time) at regular intervals There is a method of displaying fast-forwarding images and a method of acquiring thumbnails at regular intervals and displaying them in a list.

  In the above-described method of not displaying the video, since the video up to the skip destination position (time) is not displayed, the viewer cannot recognize the video information being skipped. In many cases, the video being skipped includes information desired by the user.

  In the method of displaying the fast-forward video, it is necessary to display a plurality of images before fast-forwarding to the skip destination position (time), and it takes time to complete the skip. Also, when the number of images to be displayed is reduced, the image information is reduced and the meaning of fast-forwarding is not achieved.

  The method of acquiring thumbnails at equal intervals and displaying them in a list is one method for solving the above problem, but the invention described in Patent Document 3 only acquires thumbnails at equal intervals. And information in the skipped section cannot be recognized. For this reason, it cannot be said that the useful information which the image has is sufficiently conveyed. In addition, the thumbnail is linked to the time information, but does not take into account the content or image. That is, the information contained in the moving image content is not completely transmitted.

  An object of the present invention is to provide a playback apparatus and a program that can efficiently acquire and reproduce a large amount of information included in a moving image omitted by a skip operation.

  In the present invention, skip refers to fast forward and rewind, and jump refers to moving a position (time) by specifying a playback time or index. That is, it is not necessarily the same as the skip processing and the jump processing of the instruction command performed for the playback device (information processing device).

The playback device of the present invention plays back moving image content, and in a playback device that enables skipping of a section from a skip commanded position to a predetermined position, the control means is configured to start and end the skip commanded section. Acquires position (time) information, extracts an acquisition position of a characteristic thumbnail from the content of a moving image in a skip section specified by the acquired information, and also extracts the characteristic thumbnail based on the acquisition position of the characteristic thumbnail The thumbnail acquisition unit that additionally extracts the thumbnail acquisition position that makes it easy to understand and acquires each thumbnail from the extracted images at each acquisition position, and the plurality of acquired thumbnails are divided into the characteristic thumbnail and the characteristic thumbnail. And electronic screen construction means for constructing an electronic screen using the information as a thumbnail to assist. It is characterized in.

  According to the present invention, it is possible to provide a playback device and a program that can efficiently acquire and display information included in video from a skip source to a skip destination.

  A first embodiment of the present invention will be described with reference to FIGS.

  The present invention is characterized by acquisition (extraction) of thumbnails, construction (synthesis) of the acquired thumbnails on an electronic screen, and a combination thereof.

  FIG. 1 is a block diagram illustrating a playback apparatus 1 according to an embodiment. The playback apparatus 1 according to this embodiment is a general personal computer. Note that an information processing apparatus that can reproduce moving image content is not limited to a personal computer, and may be a home appliance represented by an HDD recorder, a DVD recorder, or a portable player. .

  The playback apparatus 1 includes a control unit 110 that performs various types of information processing, a RAM 120 that temporarily stores information, a ROM 130 that stores a basic control program, an input unit 140 through which information is input by a user, and an output unit that outputs data and the like 150, an HDD 160 as a storage device, a network control unit 170 for communicating with the Internet or the like via a network, a playback unit 180 that enables recording and playback of moving images, and an optical device 190 that reads and writes information on an optical disk are connected by a bus. ing.

  The input unit 140 is connected to a keyboard, a mouse, and a remote controller, and inputs a user operation to the control unit 110. An LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube), or the like is connected to the output unit 150 as a display device, and output information from the control unit 110 is output to the outside. A speaker or the like is also connected to the output unit 150.

  The HDD 160 stores various programs, data, and contents. An OS (Operating System) is also stored. The control unit 110 operates based on an instruction from the OS. In addition to the OS, the HDD 160 stores a browser, moving image playback software, recording software, and the like, which are expanded and used in the RAM 120 as necessary. A plurality of moving image contents are stored in the HDD 160 and are reproduced according to the user's request.

  Also, the HDD 260 stores a program (moving image playback software) that causes the thumbnail acquisition means, the electronic screen construction means, and the skip means to function. The various programs are programs that use hardware such as the control unit 110 or other software, realize a thumbnail acquisition function, an electronic screen construction function, and a skip function, and reproduce moving image content and enable skipping.

  The moving image content is data of a moving image file stored as an electronic file, and is compressed and encoded by, for example, the MPEG method.

  The television reproduction unit 180 includes an encoder and a decoder, and converts the reproduced video into a television signal (composite, HDMI signal, etc.). In this embodiment mode, a television is connected as a display device, but is not particularly limited.

  In such a configuration, the playback device 1 according to the embodiment can efficiently acquire and display information included in video from the skip source to the skip destination.

  Next, it is assumed that the user of the playback apparatus 1 plays the moving image content A using various functions provided in the playback apparatus 1 and skips from a specific position (time). Note that the control unit 110 performs reproduction or stop of the moving image content according to the moving image reproduction software stored in the storage device 160.

  FIG. 2 is a flowchart illustrating an operation in which the playback apparatus 1 according to the embodiment constructs an electronic screen when skipping.

  The control unit 110 acquires a setting for whether or not to perform a thumbnail display that is set in advance. When performing thumbnail display, the process proceeds to the next step. If thumbnail display is not performed, playback is started from the skip destination position (step S201).

  The control unit 110 acquires position (time) information of the skip section (step S202).

  The control unit 110 acquires the content of the moving image content and the content of the image (step S203). Details will be described later.

  Based on the information acquired in the previous step, the control unit 110 determines a position (time) for acquiring a thumbnail, and acquires (extracts) a thumbnail at the determined position (step S204). The acquired thumbnail may be stored in the RAM 120 or may be temporarily recorded in the storage device 160.

  The control unit 110 constructs (combines) thumbnail list screens in accordance with a preset screen format in order to efficiently display the acquired thumbnails on the screen (step S205).

  The control unit 110 converts the constructed thumbnail list screen into a format that can be displayed on the display device, and outputs it (step S206). That is, the screen is displayed.

  The control unit 110 identifies whether the user has selected thumbnails displayed as a list (step S207).

  When the thumbnail displayed as a list is not selected, the control unit 110 displays the thumbnail list for about several seconds and then plays back from the skip destination position (step S208).

  When the thumbnails displayed as a list are selected, the control unit 110 jumps to the position (time) of the selected thumbnail and reproduces from that position (step S209).

  Here, a description will be given by taking as an example a means (thumbnail extraction) for acquiring the content of moving image content and the content of an image and acquiring a thumbnail.

  Means for acquiring thumbnails in consideration of the content of the video content is a means for determining the amount of one skip from the total time of the video content, equally dividing the skip time, and acquiring thumbnails at the divided positions (time) Is mentioned. There is also a means for identifying a change in sound (frequency, amplitude, etc. of reproduced sound) included in the video content and acquiring a thumbnail at a position (time) where the amount of change is large. Further, in skipping a CM, a main part of the CM is extracted, and a thumbnail at the extracted position (time) is acquired. Here, the main part is a product or logo displayed at the end of the screen if the thumbnail displayed on the screen is one image, and is an image of the beginning, middle, or end when it is three images. In a specific example, in a 15-second CM, thumbnails may be extracted and acquired at three points of 2 seconds, 7 seconds, and 14 seconds.

  As a means for acquiring a thumbnail in consideration of the contents of the image, there is a means for performing image analysis such as a difference between the image of one frame or the previous and subsequent frames. For example, in the case of MPEG, an I picture (intra-coded image) is acquired, and a characteristic image (a person's face, characters, logo, thing, product, etc.) is extracted and extracted using an existing image analysis method. There is also means for obtaining a thumbnail of the position (time) of the image. A P picture and a B picture may be used. As means for recognizing and extracting the difference between the previous and next frames, the bit rate change amount may be extracted, or the difference between the data after the mosaic processing may be extracted, and the extracted position (time) Can be obtained as thumbnails. If the change in the bit rate is large, it is highly possible that the screen has been switched. If the change is small, it is likely that the same screen will continue, so it is a main part video. Can be determined.

  The bit rate threshold for extracting the bit rate change amount may be determined for each compression standard and compression rate because the bit rate differs depending on the compression standard of the moving image to be reproduced. For example, in the case of the DVD standard, 8 Mbps, which is about 80% of the maximum rate of 10.08 Mbps, may be determined as the high bit rate. For the LP (2.2 Mbps) image quality rate of the MPEG4 standard, 4 Mbps may be determined as a high bit rate, and for the SP (4.6 Mbps) image quality rate, 6 Mbps may be determined as a high bit rate.

  Next, means for constructing a thumbnail list screen (electronic screen construction means) will be described.

  In order to efficiently display the acquired thumbnail information (video information to be skipped), it is desirable to change the arrangement and size of the thumbnail for each acquisition (extraction) unit. Several screen display examples will be given and explained in detail. The display device 3 may be a monitor connected to the output unit 150 of the playback device 1 or a television connected to the television playback unit 180. The screen display example schematically represents an electronic screen displayed on the display screen 310 of the display device 3. In the case where the playback device includes a display unit, the display unit may be the display screen 310.

  FIG. 3 is a display example A illustrating a list of thumbnails.

  In display example A, four large thumbnails (30a, 30d, 30g, 30j) are displayed on the display screen 310, and two small thumbnails (30b, 30c, etc.) are displayed on the right side of the large thumbnail. .

  FIG. 4 is a time chart A showing the acquisition positions of thumbnails displayed on the display screen 310 shown in FIG.

  The time chart A is a part or all of the moving image content, and shows that the control unit 110 of the playback apparatus 1 skips the skip section 45 from the skip start position 40 to the skip end position 42 in one skip operation. This indicates that twelve thumbnails from extraction position a to extraction position l (41a to 41l) are acquired at the timing of thumbnail acquisition (step S204).

  Each extraction position (41a to 41l) of the time chart A is a means for acquiring a thumbnail, and is acquired in consideration of the contents of the image.

  Specifically, during the skip period 45, thumbnails characteristic of 4 positions (41a, 41d, 41g, 41j), which are positions where the amount of change in the bit rate is large (positions where the scenes of the video are considered to have been switched), are characteristic. And the remaining eight thumbnails (41b, 41c, 41e, etc.) are acquired at a position slightly moved after the characteristic thumbnail.

  In the display example A of FIG. 3, using the above-described thumbnail acquisition means, the acquired four characteristic thumbnails are displayed at large positions 30a, 30d, 30g, and 30j, and the four characteristic thumbnails on the right are displayed. The remaining eight thumbnails are displayed beside (positions such as 30b and 30c).

  In this way, by arranging and displaying thumbnails, it is possible to easily understand the contents of the moving image content. Also, if the thumbnail can be selected on the screen, the video information being skipped can be easily accessed, and the information desired by the user can be provided.

  FIG. 5 is a display example B illustrating a list of thumbnails.

In the display example B, four characteristic thumbnails are displayed on the display screen 310, and two auxiliary thumbnails are displayed on both sides of the characteristic thumbnail .

  FIG. 6 is a time chart B showing the acquisition positions of thumbnails displayed on the display screen 310 shown in FIG.

  Time chart B indicates that 20 thumbnails from extraction position a to extraction position t are acquired at the timing of thumbnail acquisition (step S204).

  Each extraction position in the time chart B identifies a change in sound (frequency and amplitude of reproduced sound), and has four positions (c, h, m, r), which are positions considered as main parts of the video, as characteristic thumbnails. And 16 thumbnails are acquired at positions slightly moved before and after the characteristic thumbnail.

  In the display example B of FIG. 5, the four characteristic thumbnails (c, h, m, r) acquired are displayed in large size using the above-described thumbnail acquisition means, and the four characteristic thumbnails on both sides are displayed. Display the previous and next thumbnails (a, b, d, e, etc.).

  In this way, by arranging and displaying thumbnails, it is possible to easily understand the contents of the moving image content. Also, if the thumbnail can be selected on the screen, the video information being skipped can be easily accessed, and the information desired by the user can be provided.

  FIG. 7 is a display example C illustrating a list of thumbnails.

  In the display example C, six large thumbnails (b, f, j, n, r, v) are displayed on the display screen 310, and small thumbnails (a, c, d, e) are displayed on both sides of the large thumbnail. Etc.).

  FIG. 8 is a time chart C showing the acquisition positions of thumbnails displayed on the display screen 310 shown in FIG.

  The time chart C indicates that 24 thumbnails from the extraction position a to the extraction position x are acquired at the thumbnail acquisition timing.

  For each extraction position of the time chart C, six positions (b, f, j, n, r, v) which are positions considered to be the main part of the video are extracted as characteristic thumbnails, and characteristic thumbnails (b, Among the f, j, n, r, and v), thumbnails at further characteristic positions are extracted, and the remaining 18 thumbnails are acquired.

  In the display example C of FIG. 7, using the above-described thumbnail acquisition means, the obtained six characteristic thumbnails (b, f, j, n, r, v) are displayed in large size, and the characteristic thumbnails are displayed. The thumbnails (a, c, d, e, etc.) at more characteristic positions are displayed so as to fill in.

  In this way, by arranging and displaying thumbnails, it is possible to easily understand the contents of the moving image content. Also, if the thumbnail can be selected on the screen, the video information being skipped can be easily accessed, and the information desired by the user can be provided.

  FIG. 9 is a display example D illustrating a list of thumbnails.

  In display example D, video (main part) 50 after skipping (skip end position) is displayed on display screen 310, and thumbnails a to e (50a to 50e) are displayed in the lower margin.

  As the extraction positions of the thumbnails a to e, five positions that are considered to be the main parts of the video are extracted using a thumbnail acquisition unit.

  In this way, by arranging the thumbnails a to e so that they can be displayed, the contents of the skipped moving image content can be easily understood. Further, if the thumbnail is displayed after the reproduction is started, the skipped information can be acquired while viewing the main video. That is, it is possible to efficiently acquire and reproduce the information included in the moving image omitted by the skip operation. Note that the same effect can be obtained even when the thumbnails a to e are displayed (superimposed) on the main video.

  FIG. 10 is a display example E illustrating a list of thumbnails.

  Display example E is a display example that is useful when skipping chapters. In display example E, the beginning, middle and end of chapters to be skipped are separated by time, characteristic thumbnails are extracted and acquired from the beginning, middle and end, and thumbnails before and after the main part are displayed. Is obtained and displayed.

  In this way, thumbnails (b, e, h) of the main part video are arranged, and thumbnails (a, c, d, etc.) of the video before and after the main part video are arranged on the right side thereof, thereby skipping chapters. It is easy to understand the contents of.

  FIG. 11 is a display example F illustrating a list of thumbnails when a CM is skipped.

  The display example F is a display example that is useful when skipping a CM. In display example F, the beginning, middle and end of the CM to be skipped are separated by time, and a characteristic thumbnail is extracted and acquired as the main part video from the end, and further, the beginning and middle are acquired as thumbnails. It is displayed.

  Many commercials display product or company trademarks for a few seconds at the end to emphasize the information they want to convey. Also, it is possible to determine that the video with little movement is an essential part for showing it carefully, and that it is a main part.

  Therefore, if the end position bit rate low position (position with little change in video) is identified as the main video, thumbnails are acquired and displayed large on the electronic screen, the information of the CM can be displayed efficiently. Further, by acquiring and displaying a mark as a thumbnail by image recognition (character recognition), information held by the CM can be efficiently displayed.

  In addition to the display examples described above, it is possible to classify characteristic videos for each characteristic and obtain them as thumbnails and display them in a list, or to change the display of the list according to the degree of characteristics of the thumbnails. For example, the thumbnail arrangement is usually left-to-right and right-to-left, so that the time axis of the display order is reversed, the main part of the conclusion is displayed largely on the left, and then the surrounding video on the right If it is arranged so that video information can be acquired, the information contained in the content can be displayed efficiently. It is particularly useful for information programs and contents of presentations that frequently use characters.

  As described above, according to an embodiment of the present invention, the playback software (program) causes the control unit or the like to function, so that the playback device 1 according to the embodiment allows the video from the skip source to the skip destination. Can be obtained and displayed efficiently.

  Although the embodiment has been described with reference to the playback apparatus 1, the configuration of the playback apparatus 1 is not particularly limited. For example, when the moving image content is reproduced on the video card, the control unit and the GPU or VPU mounted on the video card use the VRAM or the like to reproduce the moving image content. In addition, when moving image content is recorded on an optical disc, information may be acquired and reproduced using an optical device. Moreover, you may acquire a moving image content via a network.

  If the moving image content is not compressed, the reproduction software does not need to be expanded and does not need a decoder function. Further, it may be reproduced by either hardware or software, and there is no particular limitation.

  That is, any information processing device may be used as long as the reproducing apparatus can reproduce moving image content, has a skip function, and can display an electronic screen.

  The information desired by the user includes, for example, a story of a video content, a title screen, a subtitle screen, subtitles, a screen switching position, a content modification position, and a CM content.

  The playback apparatus is operated by a remote controller, a mouse, a keyboard, or the like, but it is still effective if a list of thumbnails is displayed by linking with a special operation of the remote controller. For example, a plurality of dedicated buttons may be provided, and the thumbnail list display format may be changed for each button, or the thumbnail list may be canceled by pressing the skip button twice. Further, a list of thumbnails may be displayed by pressing the skip button twice.

  Furthermore, a list of thumbnails up to the next skip destination may be displayed by pressing the skip button twice (continuous skip function).

  In the above description of the embodiment, the acquisition of thumbnails, the construction of the acquired thumbnails on the electronic screen, and the combination thereof have been described. However, the present invention can also use moving images instead of thumbnails. . In the case of using a moving image, instead of the thumbnail acquiring means for acquiring a characteristic thumbnail, the characteristic moving image acquiring means for acquiring a reduced display moving image selected (cut out) in the same manner as the thumbnail is made to function, and the electronic screen The construction means and the control unit may be able to display a reduced moving image.

  If reduced thumbnails are displayed and reproduced instead of thumbnails, a large amount of information contained in a movie omitted by the skip operation can be efficiently acquired and reproduced.

  The reason why many users use the skip function and the reason why they want a fast-forward video when skipping is to skip the video (content, information) that is not necessary, and jump a specific number of seconds Is not the essence. That is, acquisition of a video (contents and information) that is less necessary is also desired and important from the user.

It is a block diagram which shows the reproducing | regenerating apparatus of one Embodiment. It is a flowchart which shows the operation | movement which builds an electronic screen at the time of a playback apparatus skipping. It is display example A which illustrates the list of thumbnails. It is the time chart A which showed the acquisition position of the thumbnail displayed on a display screen. It is display example B which illustrates the list of thumbnails. It is the time chart B which showed the acquisition position of the thumbnail displayed on a display screen. It is display example C which illustrates the list of thumbnails. It is the time chart C which showed the acquisition position of the thumbnail displayed on a display screen. It is display example D which illustrates the list of thumbnails. It is display example E which illustrates the list of thumbnails. It is a display example F illustrating a list of thumbnails when a CM is skipped.

Explanation of symbols

1 Playback device 3 Display device (LCD, CRT, TV)
110 Control unit 120 RAM
130 ROM
140 Input unit 150 Output unit 160 Recording device 170 Network interface 180 TV playback unit 190 Optical device 310 Display screen

Claims (18)

In a playback device for playing back video content and enabling skipping of a section from a position instructed to skip to a predetermined position,
The control means
The position (time) information of the start and end of the section instructed to be skipped is acquired, the characteristic thumbnail acquisition position is extracted from the contents of the moving image in the skip section specified by the acquired information, and the characteristic thumbnail Thumbnail acquisition means for additionally extracting thumbnail acquisition positions that facilitate understanding of the characteristic thumbnails based on the acquisition positions, and acquiring each thumbnail from the extracted images at the respective acquisition positions ;
A plurality of thumbnails obtained, using as a thumbnail to assist information included in the thumbnail in the thumbnail and the features of feature, an electronic menu construction means for constructing an electronic screen,
A playback apparatus comprising:   The control means includes
  The additional acquisition position of the auxiliary thumbnail is determined from the content of the moving image within the section determined by the two characteristic thumbnails so that the information between both of the two characteristic thumbnails is supported by filling between the two characteristic thumbnails. Identify and determine the characteristic images
The playback apparatus according to claim 1.   The control means includes
  The additional acquisition position of the auxiliary thumbnail is determined at a predetermined interval behind the characteristic thumbnail.
The playback apparatus according to claim 1.   The control means includes
  The additional acquisition position of the auxiliary thumbnail is determined at predetermined intervals in front and behind the characteristic thumbnail.
The playback apparatus according to claim 1.   The control means includes
  When chapter skip processing is input,
  Videos between chapters to be skipped are separated by time and acquired as characteristic thumbnails from each section, and thumbnails before and after the characteristic thumbnails are additionally acquired as auxiliary thumbnails to construct a screen.
The reproducing apparatus according to claim 1.   The control means includes
  When CM skip processing is input,
  Divide the CM video to be skipped into the beginning, middle and end, and obtain a thumbnail with a characteristic of the position where there is little change in the movie from the end, and also obtain a supporting thumbnail from the beginning and middle of the movie.
The reproducing apparatus according to claim 1. A program for causing the control unit of the information processing device to play a moving image content and to function so as to be able to skip a section from a position where a skip command has been given to a predetermined position,
The control unit
The position (time) information of the start and end of the section for which a skip command has been issued is acquired, the characteristic thumbnail acquisition position is extracted from the content of the moving image in the skip section specified by the acquired information, and the characteristic thumbnail Thumbnail acquisition means for additionally extracting thumbnail acquisition positions that facilitate understanding of the characteristic thumbnails based on the acquisition positions, and acquiring each thumbnail from the extracted images at the respective acquisition positions ;
A plurality of thumbnails obtained, using as a thumbnail to assist information included in the thumbnail in the thumbnail and the features of feature, an electronic menu construction means for constructing an electronic screen,
A program characterized by making it function.   The control unit
  The additional acquisition position of the auxiliary thumbnail is determined from the content of the moving image within the section determined by the two characteristic thumbnails so that the information between both of the two characteristic thumbnails is supported by filling between the two characteristic thumbnails. Identify and determine the characteristic images
The program according to claim 7, wherein the program is operated as follows.   The control unit
  The additional acquisition position of the auxiliary thumbnail is determined at a predetermined interval behind the characteristic thumbnail.
The program according to claim 7, wherein the program is operated as follows.   The control unit
  The auxiliary thumbnail additional acquisition position is determined at a predetermined interval in front of and behind the characteristic thumbnail.
The program according to claim 7, wherein the program is operated as follows.   The control unit
  When chapter skip processing is input,
  Videos between chapters to be skipped are separated by time and acquired as characteristic thumbnails from each section, and thumbnails before and after the characteristic thumbnails are additionally acquired as auxiliary thumbnails to construct a screen.
The program according to claim 7, wherein the program is operated as follows.   The control unit
  When CM skip processing is input,
  Divide the CM video to be skipped into the beginning, middle and end, and obtain a thumbnail with a characteristic of the position where there is little change in the movie from the end, and also obtain a supporting thumbnail from the beginning and middle of the movie.
The program according to claim 7, wherein the program is operated as follows. A method for constructing an electronic screen to be displayed when a playback device plays back video content and skips a section from a position commanded to skip to a predetermined position,
The playback device
The position (time) information of the start and end of the section for which a skip command has been issued is acquired, the characteristic thumbnail acquisition position is extracted from the content of the moving image in the skip section specified by the acquired information, and the characteristic thumbnail Thumbnail acquisition means for additionally extracting thumbnail acquisition positions that facilitate understanding of the characteristic thumbnails based on the acquisition positions, and acquiring each thumbnail from the extracted images at the respective acquisition positions ;
A plurality of thumbnails obtained, using as a thumbnail to assist information included in the thumbnail in the thumbnail and the features of feature, an electronic menu construction means for constructing an electronic screen,
Have,
When performing the skip operation,
The control unit of the playback device discriminates the content of the moving image in the skipped section , extracts the acquisition position of the characteristic thumbnail and the acquisition position of the thumbnail assisting the characteristic thumbnail from the determination result, A method for constructing an electronic screen, comprising: obtaining a plurality of thumbnails from an acquisition position, and constructing an image including a supplementary thumbnail together with the obtained characteristic thumbnail so that the video can be displayed on the electronic screen.   The additional acquisition position of the auxiliary thumbnail is determined from the content of the moving image within the section determined by the two characteristic thumbnails so that the information between both of the two characteristic thumbnails is supported by filling between the two characteristic thumbnails. Identify and determine the characteristic images
The method of constructing an electronic screen according to claim 13.   The additional acquisition position of the auxiliary thumbnail is determined at a predetermined interval behind the characteristic thumbnail.
The method of constructing an electronic screen according to claim 13.   The additional acquisition position of the auxiliary thumbnail is determined at predetermined intervals in front and behind the characteristic thumbnail.
The method of constructing an electronic screen according to claim 13.   When chapter skip processing is input,
  Videos between chapters to be skipped are separated by time and acquired as characteristic thumbnails from each section, and thumbnails before and after the characteristic thumbnails are additionally acquired as auxiliary thumbnails to construct a screen.
The method of constructing an electronic screen according to claim 13.   When CM skip processing is input,
  Divide the CM video to be skipped into the beginning, middle and end, and obtain a thumbnail with a characteristic of the position where there is little change in the movie from the end, and also obtain a supporting thumbnail from the beginning and middle of the movie.
The method of constructing an electronic screen according to claim 13.

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