WO2006059779A1 - 符号化装置および方法、復号装置および方法、プログラム、記録媒体、ならびに、データ構造 - Google Patents
符号化装置および方法、復号装置および方法、プログラム、記録媒体、ならびに、データ構造 Download PDFInfo
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- WO2006059779A1 WO2006059779A1 PCT/JP2005/022409 JP2005022409W WO2006059779A1 WO 2006059779 A1 WO2006059779 A1 WO 2006059779A1 JP 2005022409 W JP2005022409 W JP 2005022409W WO 2006059779 A1 WO2006059779 A1 WO 2006059779A1
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- video
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- aspect ratio
- main video
- picture
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- 238000000034 method Methods 0.000 title claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 238000010586 diagram Methods 0.000 description 15
- 238000004891 communication Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 101000619663 Homo sapiens Leucine-rich repeat-containing protein 1 Proteins 0.000 description 1
- 102100022237 Leucine-rich repeat-containing protein 1 Human genes 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/278—Subtitling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4314—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
- H04N21/440272—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA for performing aspect ratio conversion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
- H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
- H04N7/0884—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of additional display-information, e.g. menu for programme or channel selection
- H04N7/0885—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of additional display-information, e.g. menu for programme or channel selection for the transmission of subtitles
Definitions
- Encoding apparatus and method decoding apparatus and method, program, recording medium, and data structure
- the present invention relates to an encoding device and method, a decoding device and method, a program, a recording medium, and a data structure, and is capable of displaying a sub-video with an aspect ratio independent of an aspect ratio of the main video.
- the present invention relates to an encoding device and method, a decoding device and method, a program, a recording medium, and a data structure.
- main video Content video
- sub video content video
- the aspect ratio of the sub-picture is related to the aspect ratio of the main picture. If the aspect ratio of the main picture is a: b, the sub-picture also has the aspect ratio of a: b and the aspect ratio of the main picture. If the ratio is c: d, the sub-picture is also superimposed on the main picture with an aspect ratio of c: d.
- the present invention has been made in view of such circumstances, and makes it possible to display a sub-video with an aspect ratio independent of the aspect ratio of the main video.
- the encoding device includes a first encoding unit configured to encode a main video and incorporate a main video aspect ratio; And a second encoding unit configured to incorporate a pect ratio.
- the second encoding unit can set a flag representing the sub-picture aspect ratio and incorporate the sub-picture aspect ratio.
- the encoding method of the present invention includes a first encoding step for encoding a main video and incorporating the aspect ratio of the main video, encoding a sub-video and the aspect ratio of the sub-video. And a second encoding step that incorporates.
- the first program of the present invention encodes a main video and incorporates a main video aspect ratio, and encodes a sub-video and sub-picture aspect ratio. And a second encoding step to be incorporated.
- the main video is encoded and the aspect ratio of the main video is incorporated, and the sub-video is encoded and the aspect ratio of the sub-video is incorporated.
- the first acquisition unit configured to acquire the aspect ratio of the main video embedded in the encoded data of the main video and the main video image frame acquired by the first acquisition unit.
- a first conversion unit configured to perform conversion according to the aspect ratio, and a second conversion unit configured to acquire a sub-picture aspect ratio embedded in the encoded data of the sub-picture.
- a second conversion unit configured to convert the image frame of the sub-video according to the aspect ratio of the sub-video acquired by the second acquisition unit.
- the decoding method includes a first acquisition step of acquiring a main video aspect ratio incorporated in encoded data of a main video, and an image frame of the main video as a process of the first acquisition step.
- the acquisition step includes a second conversion step of converting the image frame of the sub-video according to the aspect ratio of the sub-video acquired in the processing of the second acquisition step.
- the second program of the present invention includes a first acquisition step of acquiring a main video aspect ratio incorporated in encoded data of the main video, and an image frame of the main video.
- the first conversion step that converts according to the aspect ratio of the main video acquired in the processing of the step, and the aspect ratio of the sub-picture embedded in the sub-picture encoding data are obtained.
- the aspect ratio of the main video embedded in the encoded data of the main video is acquired, and the image frame of the main video is acquired. It is converted according to the aspect ratio of the main video, the aspect ratio of the sub video embedded in the encoded data of the sub video is acquired, and the image frame of the sub video is converted to the acquired sub video aspect. Converted according to the cut ratio.
- the main video encoded data obtained by encoding the main video data and the sub video encoded data obtained by encoding the sub video data to be displayed superimposed on the main video data are multiplexed.
- the recorded main video encoded data has a first aspect ratio flag that represents the aspect ratio of the main video data
- the sub-video encoded data has a first aspect ratio flag. Is characterized by having a second aspect ratio flag that represents the aspect ratio of the sub-picture data.
- the main video encoding data obtained by encoding the main video data and the sub video encoded data obtained by encoding the sub video data to be displayed superimposed on the main video data are multiplexed.
- the main video encoded data has a first aspect ratio flag that represents the aspect ratio of the main video data, and the sub video encoding data is independent of the first aspect ratio flag.
- the second aspect ratio flag indicating the aspect ratio of the sub-picture data is provided.
- the main video encoded data obtained by encoding the main video encoded data obtained by encoding the main video data and the sub video data displayed by being superimposed on the main video data are displayed.
- the main video encoding data has a first aspect ratio flag indicating the aspect ratio of the main video data
- the sub video encoded data is the first video data.
- the data recorded on this recording medium or the data structure The aspect ratio of the main video embedded in the encoded data of the main video and the aspect ratio of the sub video embedded in the encoded data of the sub video are obtained from the data having According to the aspect ratio of the acquired main video, and the image frame of the sub video can be converted according to the aspect ratio of the acquired sub video.
- Sub-pictures can be displayed with an aspect ratio that is independent of the aspect ratio.
- FIG. 1 is a diagram showing a display example of a conventional caption
- FIG. 2 is a block diagram showing a configuration example of an encoding apparatus to which the present invention is applied
- FIG. 3 is a video encoder 26 in FIG.
- FIG. 4 is a flowchart schematically showing an example of processing in the video encoder
- FIG. 5 is a diagram for explaining subtitle coordinates
- FIG. 6 is a decoding to which the present invention is applied.
- FIG. 7 is a block diagram showing a configuration example of the video decoder 66 in FIG. 6,
- FIG. 8 is a flowchart schematically showing an example of processing in the video decoder
- FIG. FIG. 10 is a flowchart for explaining the operation of the sub-picture image frame size conversion unit 75 in FIG. 7, FIG.
- FIG. 10 is a diagram showing a display example of subtitles in the present invention
- FIG. Other figures showing examples of caption display in the invention FIG. 12 and FIG. Figure for explaining that if the aspect ratio of the display device is 4: 3, the subtitle image is projected with an aspect ratio of 4: 3 even if the aspect ratio of the main image is 16: 9.
- Fig. 13 shows the display area of the main video for the subtitle coordinates.
- Fig. 4 is another diagram showing the display area of the main video for the subtitle coordinates
- Fig. 15 is another diagram showing the display area of the main video for the subtitle coordinates
- Fig. 16 is the main video display area for the subtitle coordinates.
- Fig. 17 is another diagram showing the display area of the main video with respect to the subtitle coordinates, Fig.
- FIG. 18 is another diagram showing the display area of the main video with respect to the subtitle coordinates
- Fig. 17 Fig. 9 is another diagram showing an example of the display of the caption in the present invention
- Fig. 20 is another diagram showing an example of the display of caption in the present invention
- Fig. 21 is the main figure for the caption coordinate.
- FIG. 22 shows another diagram showing the main video display area with respect to the subtitle coordinates.
- FIG. 23 shows another diagram showing the main video display area with respect to the subtitle coordinates.
- FIG. 24 is another diagram showing a display example of captions in the present invention
- FIG. 25 is another diagram showing a display example of captions in the present invention.
- the encoding device is an encoding device that generates encoded data of a video that is displayed by superimposing a sub-video on a main video, and encodes the main video and stores a video of the main video.
- a first encoding unit configured to incorporate the aspect ratio (for example, the main video encoding unit 3 1 in FIG. 3), and the sub-picture and the aspect ratio of the sub-video.
- a second encoding means for example, the sub-picture encoding unit 3 2 in FIG. 3) configured to incorporate.
- the second incorporation means includes a flag indicating the aspect ratio of the sub-picture (for example, a flag indicating 16: 9, a flag indicating 4: 3, 16: 9, and 4: A flag indicating that any of 3 is acceptable) and the aspect ratio of the sub-picture is incorporated.
- a flag indicating the aspect ratio of the sub-picture for example, a flag indicating 16: 9, a flag indicating 4: 3, 16: 9, and 4: A flag indicating that any of 3 is acceptable
- the encoding method according to claim 3 and the program according to claim 4 are the encoding method for generating the encoding data of the video that is displayed by superimposing the sub video on the main video.
- a first encoding step that encodes the main video and incorporates the aspect ratio of the main video (for example, the processing of the main video encoding unit 31 in FIG. 3), and encodes the sub-video and the sub-video aspect;
- a second encoding step that incorporates the ratio (for example, processing of the sub-picture encoding unit 32 in FIG. 3).
- the decoding device is a decoding device that decodes the encoded data of the main video and the encoded data of the sub-video displayed superimposed on the main video.
- a first acquisition unit configured to acquire an aspect ratio of the embedded main video (for example, For example, the main video decoding unit 7 2) of FIG. 7 and the image frame of the main video are converted according to the aspect ratio of the main video acquired by the first acquisition unit.
- the configured first conversion unit for example, the main video image frame size conversion unit 74 in FIG. 7) and the aspect ratio of the sub video incorporated in the encoded data of the sub video are acquired.
- a second acquisition unit configured as described above for example, the sub-video decoding unit 7 3 in FIG.
- a second conversion unit for example, a sub-picture image frame size conversion unit 75 in FIG. 7 configured to perform conversion according to the above.
- the decoding method according to claim 6 and the program according to claim 7 include a first acquisition step of acquiring an aspect ratio of the main video incorporated in the encoding of the main video.
- the processing of the main video decoding unit 72 in FIG. 7) and the image frame of the main video are set to the aspect ratio of the main video acquired in the processing of the first acquisition step.
- the first conversion step (for example, the processing of the main video image frame size conversion unit 7 4 in FIG. 7) to convert in response, and the aspect ratio of the sub video incorporated in the encoded data of the sub video
- a second acquisition step for example, the processing of the sub-picture decoding unit 73 in FIG. 7), and the sub-picture image frame obtained from the sub-picture obtained in the process of the second acquisition step.
- a second conversion step that converts according to the aspect ratio for example, Characterized in that it comprises a processing
- FIG. 9 of Zogawaku size converting unit 7 5 for example, Characterized in that it comprises a processing
- FIG. 2 shows a configuration example of the encoding device 11 to which the present invention is applied.
- the node 21 includes a CPU (Central Processing Unit) 2 2, a memory 2 3, and a video signal input interface. Evening interface 24, Control signal input interface 25, Video encoder 26, and video data output interface 2 7 etc. are connected.
- CPU Central Processing Unit
- CPU 2 2 and memory 2 3 form a computer system. That is, the CPU 22 executes a program stored in the memory 23 to control the entire apparatus and perform processing described later.
- the memory 23 stores a program executed by the CPU 22.
- the memory 2 3 temporarily stores data necessary for the operation of the CPU 2 2.
- the memory 23 can be composed of only a nonvolatile memory or a combination of a volatile memory and a nonvolatile memory.
- the device shown in Fig. 2 is equipped with an eight-sided disk and the hard disk stores the program to be executed by the CPU 22, the memory 23 should be composed only of volatile memory. Is possible.
- the program executed by the CPU 22 can be stored in advance in the memory 23 as a recording medium built in the apparatus.
- the program can be stored on a removable disk such as a disk, a flexible disk, a CD-ROM (Compact Disc Read Only Memory), an MO (Magne to Optical Disk) disk, a magnetic disk, or a memory card.
- Recording media can be stored temporarily or permanently.
- a rim-usable recording medium can be provided as so-called package software.
- the program can be stored in the memory 23 in advance, or can be installed in the apparatus from a removable recording medium as described above. Also, the program can be transferred wirelessly to the device from the download site via a digital satellite broadcasting artificial satellite, or wired to the device via a network such as a LAN (Local Area Ne twork) or the Internet. However, the device receives the program transferred in this way and installs it in the built-in memory 23. You can
- the program may be processed by one CPU, or may be processed by multiple CPUs in a distributed manner.
- the video signal input interface 24 inputs the video signal of the main picture and the video signal of the sub picture supplied from the video camera or the like under the control of the CPU 22 and passes the CPU 2 2, the memory 23, and the video stream via the path 21. Supply to coder 2 6 etc.
- the control signal input interface 2 5 inputs a control signal supplied when a user operates a key (button) (not shown) or a remote control (remote control commander), and via the bus 21, C Supply to J22.
- the control signal input interface 25 also functions as a communication interface such as a mote (including an ADSL (Asymmetric Digital Subscriber Line) mote) or a NIC (Network Interface Card).
- the video encoder 26 encodes the video signal input via the video signal input interface 24 and supplies the video data obtained as a result to the CPU 22 via the bus 21.
- the video data output interface 27 outputs a video transport stream obtained by converting the video data into a bucket by the CPU 22.
- FIG. 3 shows a configuration example of the video encoder 26 of FIG.
- the flowchart in FIG. 4 schematically shows an example of processing in the video encoder 26.
- step S1 the main video encoding unit 3 1 performs encoding processing of the video signal of the main video.
- the aspect ratio of the main video is incorporated into the encoded data.
- step S2 the sub-picture encoding unit 3 2 encodes the sub-picture video signal, and the sub-picture aspect ratio and the like are incorporated into the coding process. It is.
- step S3 the main video encoding data including the main video aspect ratio and the like and the sub video encoding data including the sub video aspect ratio and the like are multiplexed.
- step S 1 and step S 2 is not limited to the order shown in FIG.
- the processing related to the main video in step S1 may be performed, or the processing in step S1 and the processing in step S2 are performed in parallel.
- the processing in the video encoder 26 can also be described in more detail.
- the main video encoding unit 31 encodes the video signal of the main video input via the video signal input interface 24, and also encodes the aspect ratio of the main video notified from the CPU 22 and the like.
- the data is incorporated into the data and supplied to the multiplexing unit 33.
- Data such as the aspect ratio of the main video is incorporated into the encoded data obtained by encoding the video signal of the main video.
- data such as the aspect ratio of the main video is incorporated into the video signal of the main video before encoding, and the video signal of the main video and data such as the aspect ratio are encoded together. Also good.
- the sub-picture encoding unit 3 2 encodes sub-picture data such as subtitles and graphics input via the video signal input interface 24, and the size of the sub-picture notified from the CPU 22 and Position information, aspect ratio, and the like are incorporated into the encoded data and supplied to the multiplexing unit 33.
- sub-picture data such as subtitles and graphics input via the video signal input interface 24, and the size of the sub-picture notified from the CPU 22 and Position information, aspect ratio, and the like are incorporated into the encoded data and supplied to the multiplexing unit 33.
- the following is an example of subtitles as sub-pictures Light up.
- Data such as the sub-picture aspect ratio is incorporated into the encoded data obtained by encoding the video signal of the sub-picture.
- data such as the aspect ratio of the sub-picture is incorporated into the video signal of the sub-picture before being encoded, and the sub-video signal and the aspect ratio etc. are encoded together. May be used.
- the flag indicating that the aspect ratio is 4: 3, the flag indicating that the aspect ratio is 16: 9, or the aspect ratio is 4: 3 and 1 6: A flag indicating that any of 9 is acceptable is set.
- subtitles are located within 7 2 0 X 4 8 0, and, as will be described later, the display device depends on the aspect ratio of the display device and the aspect ratio of the subtitles. The size and position projected on the screen are converted to appropriate values and output with the main video superimposed.
- the multiplexing unit 3 3 is supplied from the main video encoding unit 3 1, the main video encoded data incorporating the main video aspect ratio, etc., and the sub video encoding.
- Part 3 2 is multiplexed with the sub-picture encoded data including the sub-picture size and position, aspect ratio, etc., and output to the video data output interface 27. To do.
- FIG. 6 shows a configuration example of a decoding device 51 to which the present invention is applied.
- Bus 6 1 has CPU 6 2, memory 6 3, video interface input interface 5022409 Ace 64, control signal input interface 65, video decoder 66, and video output interface 67 are connected.
- the CPU 62 and memory 63 form a computer system. That is, the CPU 62 executes a program stored in the memory 63 to control the entire apparatus and perform processing described later.
- the memory 63 stores a program executed by the CPU 62.
- the memory 6 3 temporarily stores data necessary for the operation of the CPU 62.
- the memory 63 can be composed of only a nonvolatile memory or a combination of a volatile memory and a nonvolatile memory. If a hard disk is installed in the device and the program executed by the CPU 62 is recorded (installed) on the hard disk, the memory 63 can be configured with only volatile memory. is there.
- the program executed by the CRJ 62 can be stored in advance in a memory 63 as a recording medium built in the apparatus.
- the program can be temporarily or permanently stored on a removable recording medium such as a disk, flexible disk, compact disc read only memory (CD-ROM), magnetic disk, or memory card. Can be kept.
- a removable recording medium can be provided as so-called package software.
- the program can be stored in the memory 63 in advance, or can be installed in the apparatus from a removable recording medium as described above.
- the program can be transferred wirelessly to the device from the down-site via a satellite for digital satellite broadcasting, or wired to the device via a network such as the LANO Local Area Network or the Internet.
- Received programs can be received and installed in the internal memory 63.
- the program may be processed by one CPU, or may be processed by multiple CPUs in a distributed manner.
- the video data input interface 6 4 inputs the encoded data encoded by the encoding device 11 and supplied to the decoding device 51 under the control of the CPU 62, and the CPU 62, Supply to memory 6 3, video decoder 6 6, etc.
- the control signal input interface 6 5 receives a signal supplied by a user operating a key (not shown) or a remote control (remote control commander), and passes through the path 6 1 to the CPU 6. Supply to 2.
- the control signal input interface 65 is, for example, moam (including an ADSL (Asymmetric Digital Subline Line) moam) or NIC (Ne twork interface card). It also functions as a communication interface.
- the video decoder 66 decodes the encoded video data supplied via the video data input interface 64 and the bus 61, and the resulting video data is sent to the bus 61. Via the CPU 6 2 and the video output interface 6 7.
- the video output interface 67 performs processing necessary for the video supplied via the bus 61 and outputs it from the video output terminal 68.
- the video output terminal 68 is connected to a display device such as a CRT (Cathode Ray Tube) or a liquid crystal panel (not shown), and therefore the video data output from the video output terminal 68 is supplied to the display device. Displayed.
- a display device such as a CRT (Cathode Ray Tube) or a liquid crystal panel (not shown)
- the supply of video data from the decoding device 51 to the display device is It can be done either by wire or by radio.
- FIG. 7 shows a configuration example of the video decoder 66 in FIG. Further, the flowchart of FIG. 8 schematically shows an example of processing of the video decoder 66.
- step S 10 the encoded data of the main video separated by the multiplexing / separating unit 71 is decoded by the main video decoding unit 72, and the main video case incorporated at the time of encoding is decoded. Data such as the image ratio is extracted, and the image frame size is converted by the main image image frame size conversion unit 74 based on the aspect ratio of the main image and the display device.
- step S 11 the encoded data of the sub-video separated by the multiplexing / separating unit 71 is decoded by the sub-video decoding unit 73, and the aspect ratio of the sub-video incorporated at the time of encoding, etc.
- the sub-picture image frame size conversion unit 75 converts the image frame size based on the sub-picture and the aspect ratio of the display device.
- the adder 7 6 superimposes the sub video on the main video determined according to the aspect ratio of the display device, and superimposes the sub video on the main video. An image is displayed.
- step S 10 and step S 11 is not limited to the order shown in FIG.
- the processing related to the main video in step S 10 may be performed, or the processing in step S 10 and the processing in step S 11 are performed in parallel. It can also be done.
- the demultiplexing unit 71 separates the encoded data of the main video and the encoded data of the sub-video from the encoded data supplied from the video data input interface 64, and also converts the encoded data of the main video Supply to main video decoder 7 2 Then, the sub-picture encoded data is supplied to the sub-picture decoding unit 73.
- the main video decoding unit 72 decodes the encoded data of the main video and supplies the video data obtained as a result to the main video image frame size conversion unit 74. At that time, the main video decoding unit 7 2 also extracts information such as the aspect ratio of the main video embedded in the encoded data of the main video and supplies it to the main video image frame size conversion unit 7 4. .
- the sub video decoding unit 73 decodes the encoded data of the sub video, and supplies the subtitle data obtained as a result to the sub video image frame size conversion unit 75.
- the sub-picture decoding unit 7 3 also extracts information on the size and position of the sub-picture embedded in the encoded data of the sub-picture and the aspect ratio, and the sub-picture image frame size conversion unit 7 Supply to 5.
- the main video image frame size conversion unit 74 converts the aspect ratio of the display device connected to the video output terminal 68 and the aspect ratio of the main video supplied from the main video decoding unit 72. Based on this, the image frame size of the main video to be output is converted and supplied to the adder 76.
- the main video image frame size conversion unit 7 4 displays the main video in the horizontal direction (horizontal Direction) and output data with black displayed on the left and right.
- the main video image frame size conversion unit 74 reduces the main video in the vertical direction. , Output data with black display on top and bottom.
- the main video image frame size converter 7 4 When the aspect ratio of the display device and the aspect ratio of the main video are the same at 4: 3 or 16: 9, the main video image frame size converter 7 4 outputs the main video as it is without reducing it. To do.
- the sub-picture image frame size conversion unit 75 converts the sub-picture image frame size based on the aspect ratio of the sub-video supplied from the sub-picture decoding unit 73, and sends it to the adder 76. Supply.
- the adder 7 6 superimposes the sub video supplied from the sub video image frame size conversion unit 75 on the main video supplied from the main video image frame size conversion unit 74, and supplies it to the output buffer 7 7 .
- the output buffer 77 temporarily stores the data supplied from the adder 76 and outputs it to the video output interface 67 at a predetermined timing.
- step S 21 the sub-picture image frame size converter 7 5 indicates the aspect ratio of the sub-picture currently supplied from the sub-picture decoder 7 3 to the sub-picture picture frame size converter 7 5. Get the flag.
- 4: 3 eg, 3 60 X 2 7 0
- 16: 9 eg, 4 8 0 X 2 7 0
- the sub-picture is projected with an aspect ratio of 4: 3 regardless of the aspect ratio of the main picture.
- the aspect ratio of the main video is 16: 9, as shown in Fig. 10, the main frame with the data to change the frame size and display black on the top and bottom is added. : Subtitle video with aspect ratio of 3 is superimposed Displayed.
- the aspect ratio of the main video is 4: 3, the video of the 4: 3 aspect ratio frame is superimposed on the main video as it is, as shown in Fig. 11.
- Step S2 3 in Fig. 9 is that if you project at an aspect ratio of 16: 9, both ends of the screen may not be displayed as shown in Fig. 12A. Because there is. The same applies when the aspect ratio of the display device is 4: 3 and the aspect ratio of the main video is 4: 3 (see Figure B in Figure 12). Therefore, when projection with a subtitle aspect ratio of 16: 9 is prohibited or the aspect ratio of the display device is 4: 3, the subtitle aspect ratio is set to 4: 3 in the first place. Sometimes.
- Fig. 10 When the sub video aspect ratio is 4: 3 and the main video aspect ratio is 16: 9 (Fig. 10), the main video display area with respect to the sub video coordinate system is shown in Fig. 13 To the shaded area shown in Fig. 15. Fig. 1 3 shows the main picture frame is 7 2 0 X 4 8 0, Fig 1 4 shows 3 5 2 X 4 8 0, Fig 1 5 shows 3 5 2 X It represents the area when 2 4 0.
- Fig. 11 the display area of the main picture with respect to the sub-picture coordinate system is shown in Figs. 1 This is the shaded area shown in Figure 8.
- Fig. 16 shows the case where the main image frame is 7 2 0 X 4 8 0, Fig. 1 7 shows 3 5 2 X 4 8 0, Fig. 1 8 shows 3 5 2 It represents the area when X 2 4 0.
- step S 22 the display device aspect ratio is 16: If it is determined that it is 9, the process proceeds to step S 24 and the sub-picture image frame size conversion unit 75 receives the flag obtained in step S 21 and the sub-picture aspect ratio is 16: 9 and 4: Determines whether the flag can be any of 3 and whether it is a flag indicating the aspect ratio of any one of 16: 9 or 4: 3. If it is determined that the flag indicates an aspect ratio, the process proceeds to step S 25.
- step S 25 the sub-picture image frame size conversion unit 75 receives the flag acquired in step S 21 as a flag indicating that the aspect ratio of the sub-picture is 16: 9 or 4: If it is determined that the flag is 3 and if it is determined that the flag is 16: 9, the process proceeds to step S 26.
- the sub-picture is displayed with a 16: 9 aspect ratio, regardless of the aspect ratio of the main picture.
- the main video has an aspect ratio of 4: 3
- a subtitle image with an aspect ratio of 9 is superimposed and displayed. That is, since the subtitle can be displayed using the display screen of the display device in this way, the subtitle can be displayed large even when the display device is a small device and the display screen is small.
- the aspect ratio of the main video is also 16: 9, as shown in Fig. 20, the 16: 9 subtitle video is superimposed and displayed on the main video as it is.
- the aspect ratio of the sub-picture is 16: 9 and the aspect ratio of the main picture is 16: 9 (Fig. 20)
- the display area of the main picture with respect to the sub-picture coordinate system Is the shaded area shown in FIGS. 16 to 18.
- Fig. 19 the display area of the main picture with respect to the sub-picture coordinate system is shown in Figs. 2 This is the shaded area shown in Figure 3.
- Fig. 2 1 shows the case where the main image frame is 7 2 0 X 4 8 0, Fig. 2 2 shows 3 5 2 X 4 8 0, Fig. 2 3 shows 3 5 2 X This represents the area when 2 4 0.
- step S 25 if it is determined in step S 25 that the sub-picture aspect ratio is 4: 3, the process proceeds to step S 27 and the sub-picture image frame size converter 7 5
- the image frame size of 7 20 X 4 8 0 of the subtitle is converted to fit the aspect ratio of 4: 3, and the resulting subtitle data is output to the adder 76.
- the sub-picture is displayed (projected) at a 4: 3 aspect ratio regardless of the aspect ratio of the main picture.
- the aspect ratio of the main video is 4: 3, as shown in Fig. 24, the aspect ratio of 4: 3 is added to the main video with the data reduced in the horizontal direction and displayed black on the left and right. Ratio subtitle video is superimposed and displayed.
- the aspect ratio of the main video is 16: 9, as shown in Fig. 25, the 4: 3 subtitle video is superimposed on the main video and displayed.
- the display area of the main video with respect to the sub video coordinate system is shown in Figs. 1 This is the area shown in Fig. 8.
- the display area of the main picture with respect to the sub-picture coordinate system is shown in Figs. 1 The area is as shown in Fig. 5.
- step S 2 4 If it is determined in step S 2 4 that the flag indicates that any aspect ratio of 16: 9 and 4: 3 is acceptable, the process proceeds to step S 2 8, where the aspect ratio of the display device Is 16: 9, so that the subframe's 7 2 0 X 4 8 0 image frame size matches the aspect ratio of 16: 9, as in step S 2 6
- the subtitle data obtained as a result is output to the adder 76.
- step S 2 6 When subtitles are displayed in step S 2 3, step S 2 6, or step S 28, the process ends.
- the sub-video is displayed based on the aspect ratio of the sub-video set independently of the main video aspect ratio and the aspect ratio of the display device. Can do.
- the series of processes described above can be realized by hardware, but can also be realized by software.
- a series of processing is realized by software, a program constituting the software is installed in a computer, and the program is executed in the computer evening. 5 1 is functionally realized.
- the steps for describing the program provided by the recording medium are not limited to the processes performed in time series according to the described order, but are not necessarily processed in time series. It also includes processes that are executed individually.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Human Computer Interaction (AREA)
- Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006546719A JP4813370B2 (ja) | 2004-12-02 | 2005-11-30 | 映像信号処理装置、映像信号処理方法、プログラムおよび記録媒体 |
US11/720,806 US8279938B2 (en) | 2004-12-02 | 2005-11-30 | Encoding device and method, decoding device and method, program, recording medium, and data structure |
EP05814422A EP1819165A4 (en) | 2004-12-02 | 2005-11-30 | CODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, RECORDING MEDIUM, AND DATA STRUCTURES |
CA002589370A CA2589370A1 (en) | 2004-12-02 | 2005-11-30 | Encoding apparatus and method, decoding apparatus and method, program, record medium, and data structure |
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JP2004-349816 | 2004-12-02 | ||
JP2004349816 | 2004-12-02 |
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WO2006059779A1 true WO2006059779A1 (ja) | 2006-06-08 |
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PCT/JP2005/022409 WO2006059779A1 (ja) | 2004-12-02 | 2005-11-30 | 符号化装置および方法、復号装置および方法、プログラム、記録媒体、ならびに、データ構造 |
Country Status (8)
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US (1) | US8279938B2 (ja) |
EP (1) | EP1819165A4 (ja) |
JP (1) | JP4813370B2 (ja) |
KR (1) | KR20070086704A (ja) |
CN (1) | CN101112096A (ja) |
CA (1) | CA2589370A1 (ja) |
TW (1) | TW200633506A (ja) |
WO (1) | WO2006059779A1 (ja) |
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TWI262725B (en) * | 2005-06-30 | 2006-09-21 | Cheertek Inc | Video decoding apparatus and digital audio and video display system capable of controlling presentation of subtitles and method thereof |
CN101188712B (zh) * | 2007-12-21 | 2012-07-18 | 康佳集团股份有限公司 | 一种页面自适应显示处理的方法 |
JP4518194B2 (ja) * | 2008-06-10 | 2010-08-04 | ソニー株式会社 | 生成装置、生成方法、及び、プログラム |
WO2010096030A1 (en) * | 2009-02-18 | 2010-08-26 | Thomson Licensing | Method and apparatus for preparing subtitles for display |
CN102065241B (zh) * | 2009-11-18 | 2015-06-17 | 新奥特(北京)视频技术有限公司 | 一种自动制作字幕的字幕机 |
US20140002460A1 (en) | 2012-06-27 | 2014-01-02 | Viacom International, Inc. | Multi-Resolution Graphics |
US10595099B2 (en) * | 2015-04-05 | 2020-03-17 | Lg Electronics Inc. | Method and device for transmitting and receiving broadcast signal for broadcast service on basis of XML subtitle |
WO2017073397A1 (ja) * | 2015-10-28 | 2017-05-04 | ソニー株式会社 | 送信装置、送信方法、受信装置および受信方法 |
CN110020285B (zh) * | 2017-09-28 | 2021-04-27 | 北京国双科技有限公司 | 柱状图的处理方法及装置 |
CN112770183B (zh) * | 2020-11-10 | 2023-03-24 | 北京达佳互联信息技术有限公司 | 视频的播放控制方法、控制装置、电子设备和存储介质 |
CN113452935B (zh) * | 2021-08-31 | 2021-11-09 | 成都索贝数码科技股份有限公司 | 横屏和竖屏直播视频生成系统及方法 |
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Also Published As
Publication number | Publication date |
---|---|
TWI315153B (ja) | 2009-09-21 |
JP4813370B2 (ja) | 2011-11-09 |
US20100128799A1 (en) | 2010-05-27 |
KR20070086704A (ko) | 2007-08-27 |
JPWO2006059779A1 (ja) | 2008-06-05 |
CA2589370A1 (en) | 2006-06-08 |
EP1819165A4 (en) | 2011-01-19 |
CN101112096A (zh) | 2008-01-23 |
US8279938B2 (en) | 2012-10-02 |
TW200633506A (en) | 2006-09-16 |
EP1819165A1 (en) | 2007-08-15 |
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