WO2010071283A1 - 입체영상 디스플레이가 가능한 디지털 방송 수신방법, 및 이를 이용한 디지털 방송 수신장치 - Google Patents
입체영상 디스플레이가 가능한 디지털 방송 수신방법, 및 이를 이용한 디지털 방송 수신장치 Download PDFInfo
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- WO2010071283A1 WO2010071283A1 PCT/KR2009/003481 KR2009003481W WO2010071283A1 WO 2010071283 A1 WO2010071283 A1 WO 2010071283A1 KR 2009003481 W KR2009003481 W KR 2009003481W WO 2010071283 A1 WO2010071283 A1 WO 2010071283A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/111—Transformation of image signals corresponding to virtual viewpoints, e.g. spatial image interpolation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/161—Encoding, multiplexing or demultiplexing different image signal components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H04N13/178—Metadata, e.g. disparity information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/194—Transmission of image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2362—Generation or processing of Service Information [SI]
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- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/816—Monomedia components thereof involving special video data, e.g 3D video
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/10—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals
- A63F2300/105—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals using inertial sensors, e.g. accelerometers, gyroscopes
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/20—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterised by details of the game platform
- A63F2300/204—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterised by details of the game platform the platform being a handheld device
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/80—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game specially adapted for executing a specific type of game
- A63F2300/8047—Music games
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
Definitions
- the present invention relates to a digital broadcast receiving method and apparatus, and more particularly, to a digital broadcast receiving method enabling a stereoscopic image display and a digital broadcast receiving apparatus using the same.
- the basic principle of the stereoscopic method is to separate and input images arranged to be orthogonal to each other in the left and right eyes of a person, and to input stereoscopic images by combining the input images of the left and right eyes in the human brain.
- the images are arranged to be orthogonal to each other means that the images do not interfere with each other.
- Specific methods for eliminating interference include a polarization scheme, a time-sequential scheme, and a spectral scheme.
- a polarization method separates each image using a polarization filter. That is, by applying polarization filters orthogonal to each other for the image for the left eye and the image for the right eye, different images filtered by the polarization filter are input to the left and right views.
- left and right images are alternately displayed, and active glasses worn by a user are synchronized with the alternately displayed images to separate each image. That is, when images are alternately displayed, the shutter of the active glasses synchronized with the image is opened only when the image is to be input and the other visual field is blocked, thereby separating the left and right images.
- the spectral method is a method of projecting left and right images through a spectral filter having spectral bands in which RGB spectra do not overlap each other.
- the user wears passive glasses equipped with a spectral filter passing only the spectral region set for the left and right images, thereby separating and inputting the left and right images.
- PSIP Program and System Information Protocol
- ATSC Advanced Television Systems Committee
- SI Service Information
- DVB digital video broadcasting
- the digital broadcast receiver also needs to be configured to receive and process stereoscopic video signals.
- the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a digital broadcast receiving method capable of displaying a stereoscopic stereoscopic image by identifying and processing a signal for a stereoscopic image.
- Another object of the present invention is to provide a digital broadcast receiver capable of displaying stereoscopic images and displaying stereoscopic signals by checking and processing signals for stereoscopic images.
- a digital broadcast receiver comprising: a demultiplexer configured to demultiplex a received digital broadcast signal; A PSIP or PSI / SI processor for extracting extended view video information from the demultiplexed digital broadcast signal; A decoder for decoding an extended view video stream and a reference view video stream from the demultiplexed digital broadcast signal; And an output formatting unit configured to format the extended view video stream and the reference view video stream based on the extended view video information.
- the extended view video information includes a relative positional relationship between the camera that generated the extended view video stream and the camera that generated the reference view video stream, the number of the extended view video streams, and the arrangement structure information of the camera. At least one of the. More preferably, the relative positional relationship may include at least one of a direction in which the camera that generated the extended view video stream is located and a degree of separation in the direction based on the camera that generated the reference view video stream. Include.
- the present invention also provides a method for receiving and processing a digital broadcast signal, comprising: a first step of receiving and demultiplexing a digital broadcast signal; Extracting extended view video information from the demultiplexed digital broadcast signal; And decoding a extended view video stream and a reference view video stream from the demultiplexed digital broadcast signal, and formatting and displaying the extended view video stream and the reference view video stream based on the extended view video information. It provides a digital broadcast receiving method capable of displaying a three-dimensional image comprising a.
- the digital broadcast receiving method and apparatus of the present invention as described above, it is possible to provide information about the stereoscopic image in various ways in digital broadcasting, and also to check and process the stereoscopic image information, it is possible to output the stereoscopic image display Do.
- FIG. 1A is a diagram illustrating a frame sequential method among screen transmission methods for forming a stereoscopic image.
- FIG. 1B is a diagram illustrating a side by side method of a screen transmission method for forming a stereoscopic image.
- FIG. 1C is a diagram illustrating a top-down method of a screen transmission method for forming a stereoscopic image.
- FIG. 1 (d) is a diagram illustrating a checker board method among screen transmission methods for forming a stereoscopic image.
- FIG. 2 illustrates a Terrestrial Virtual Channel Table (TVCT) of a Program and System Information Protocol (PSIP) using information about an extended view video stream (hereinafter, referred to as an 'EVV stream') in digital broadcasting of an Advanced Television Systems Committee (ATSC) method.
- TVCT Terrestrial Virtual Channel Table
- PSIP Program and System Information Protocol
- ATSC Advanced Television Systems Committee
- FIG. 3 illustrates an example of configuring the TVCT of FIG. 2.
- FIG. 4 is a diagram for explaining a method of setting viewpoint information of a video stream according to the present invention when the cameras are in a one-dimensional array.
- FIG. 5 is a diagram for explaining a method of setting viewpoint information of a video stream according to the present invention when the camera is in a two-dimensional array.
- FIG. 6 illustrates an example of configuring an EV descriptor of the present invention including information about a reference view video stream.
- FIG. 7 illustrates an example of configuring the component list descriptor when information on the EVV stream is provided through a component list descriptor instead of the EV descriptor of the present invention.
- EIT event information table
- PSIP program and system information protocol
- FIG. 9 shows an example of configuring an EIT in FIG. 8.
- SIT service description table
- SI service information
- FIG. 11 illustrates an example of configuring a service description table (SDT) in FIG. 10.
- SDT service description table
- FIG. 12 illustrates an example of configuring a program map table (PMT) of program specific information (PSI) in FIG. 10.
- PMT program map table
- PSI program specific information
- FIG. 13 shows information on an EVV stream through a Service Description Table (SDT) of Service Information (SI) used in digital broadcasting of DVB (Digital Video Broadcasting), using a component tag.
- SDT Service Description Table
- SI Service Information
- FIG. 14 illustrates an example of configuring a service description table (SDT) in FIG. 13.
- SDT service description table
- FIG. 15 illustrates an example of configuring a program map table (PMT) of program specific information (PSI) in FIG. 13.
- PMT program map table
- PSI program specific information
- FIG. 16 shows information on an EVV stream through an event information table (EIT) of service information (SI) used in digital broadcasting of digital video broadcasting (DVB), using a component tag.
- EIT event information table
- SI service information
- FIG. 17 illustrates an example of configuring an event information table (EIT) in FIG. 16.
- EIT event information table
- FIG. 18 is a block diagram illustrating a digital broadcast receiver according to the present invention.
- FIG. 19 is a diagram illustrating an EVV stream provided by the digital broadcast receiver of the present invention when information on an EVV stream is provided through a Terrestrial Virtual Channel Table (TVCT) of a Program and System Information Protocol (PSIP) used in ATSC-based digital broadcasting.
- TVCT Terrestrial Virtual Channel Table
- PSIP Program and System Information Protocol
- FIG. 20 illustrates that when information on an EVV stream is provided through a program map table (PMT) of PSIP in ATSC-based digital broadcasting, the digital broadcast receiver of the present invention checks and processes the information on the EVV stream and stereoscopically. It is an operation flowchart explaining a method of outputting an image.
- PMT program map table
- FIG. 21 illustrates that when information on an EVV stream is provided through an event information table (EIT) of PSIP in ATSC-based digital broadcasting, the digital broadcast receiver of the present invention checks and processes the information on the EVV stream and stereoscopically. It is an operation flowchart explaining a method of outputting an image.
- EIT event information table
- FIG. 22 illustrates an example of configuring an EPG (Electronic Program Guide) for notifying whether a broadcast program is 3D broadcast using the method of FIG. 21.
- EPG Electronic Program Guide
- FIG. 23 is a diagram of a digital broadcast receiver of the present invention confirming information on an EVV stream when information on the EVV stream is provided through a Program Map Table (PMT) of Program Specific Information (PSI) in a DVB-based digital broadcast; And a method of processing to output a stereoscopic image.
- PMT Program Map Table
- PSI Program Specific Information
- FIG. 24 is a diagram illustrating a method for providing information on an EVV stream through a Service Description Table (SDT) of Service Information (SI) in a DVB-based digital broadcasting.
- FIG. 24 illustrates information on an EVV stream using a component tag.
- SDT Service Description Table
- SI Service Information
- FIG. 25 is a diagram illustrating a method of providing information on an EVV stream through an event information table (EIT) of service information (SI) in a DVB-based digital broadcasting.
- EIT event information table
- SI service information
- FIG. 25 is a diagram illustrating a method of providing information on an EVV stream through an event information table (EIT) of service information (SI) in a DVB-based digital broadcasting.
- EIT event information table
- SI service information
- 3-D or 3D is used to describe a visual representation or display technique that attempts to play a three-dimensional video with an optical illusion of depth.
- the observer's visual cortex interprets the two images into one three-dimensional image.
- the three-dimensional (3D) display technology employs the technology of 3D image processing and representation for a device capable of 3D image display.
- a device capable of displaying 3D images may require the use of a special viewing device to effectively provide the viewer with three-dimensional images.
- Examples of 3D image processing and representation include stereoscopic image / video capture, multi-view image / video capture using multiple cameras, and processing of two-dimensional image and depth information.
- Examples of display devices capable of displaying 3D images include liquid crystal displays (LCDs), digital TV screens, and computer monitors having appropriate hardware and / or software supporting 3D display technology.
- Examples of special observation devices include specialized glasses, goggles, headgear, eyewear, and the like.
- 3D image display technology includes anaglyph stereoscopic images (commonly used with passive red blue glasses), polarized stereoscopic images (commonly used with passive polarized glasses), and alternating-frame sequencing (Typically used with active shutter eyeglasses / headgear), autostereoscopic displays using lenticular or barrier screens, and the like.
- anaglyph stereoscopic images commonly used with passive red blue glasses
- polarized stereoscopic images commonly used with passive polarized glasses
- alternating-frame sequencing Typically used with active shutter eyeglasses / headgear
- autostereoscopic displays using lenticular or barrier screens and the like.
- Some 3D image display technologies may use rotating or alternating optical devices, for example segmented polarizers attached to a color filter wheel, which requires synchronization with each other.
- Another 3D image display technology is a digital light processor based on a digital micromirror device (DMD) using a rotatable microscopic mirror, arranged in a rectangular array corresponding to the pixels of the image to be displayed.
- DMD digital micromirror device
- DLP digital light processor
- Stereoscopic image coding and stereoscopic distribution formatting include color analysis, pixel sub-sampling (side-by-side, checkerboard, quincunx, etc.). ), And enhanced video coding (2D + Delta, 2D + Metadata, 2D with depth information).
- color analysis side-by-side, checkerboard, quincunx, etc.
- enhanced video coding (2D + Delta, 2D + Metadata, 2D with depth information).
- 3D image display technology described in terms of image reproduction and display environments for digital images or 3D TVs.
- the details are not intended to limit the various features described herein and are applicable to other types of display technologies and devices.
- 3D TV technology can be applied to Blu-ray TM , console games, cable and IPTV transmissions, mobile phone content delivery, as well as TV broadcasts, where other types of TVs, Must be compatible with set-top boxes, Blu-ray devices (eg, Blu-ray TM Disk (BD) players), DVD players, and TV content distributors.
- Blu-ray devices eg, Blu-ray TM Disk (BD) players
- DVD players e.g., DVD players, and TV content distributors.
- each image is transmitted more than 60 frames per second. That is, when displayed on the screen at a speed of 120 Hz or more in total, it is possible to implement a stereoscopic image without flickering.
- the left and right images are transmitted, such as a frame sequential method, a side by side method, a top-down method, a checker board method, and the like. There is this.
- the frame sequential method is a method of alternately positioning the left image and the right image as one frame, as shown in FIG. 1 (a).
- the left and right images are sub-sampled in the horizontal direction by 1/2, respectively, and the sampled left and right images are It is located on the left side and the right side, respectively.
- the left and right images are sub-sampled in the vertical direction by 1/2, respectively, and the left and right samples are sampled. This is to place the image on the top and bottom respectively.
- the left and right images are sub-sampled in the vertical and horizontal directions by 1/2, respectively, and the pixels of the sampled left image are sampled.
- pixels of an image are alternately positioned one by one.
- the present invention proposes a stereoscopic image service descriptor that provides information on each image used to form a stereoscopic image in order to support stereoscopic image display in digital broadcasting, and further, the syntax of the stereoscopic image service descriptor ( syntax) and the configuration of its fields.
- the present invention proposes a digital broadcast receiving method and apparatus for effectively processing such a stereoscopic image service descriptor (Descriptor).
- Descriptor stereoscopic image service descriptor
- the video stream transmitted to implement the stereoscopic stereoscopic image described above includes data encoded with a left / right view image sequence.
- one of the two images becomes a base view video
- the process of acquiring and decoding signal information of the base view video may be the same as the conventional method.
- TVCT Transmission Control Channel
- PSI Program Association Table
- PMT Program Map Table
- ATSC Advanced Television Systems Committee
- the extended view refers to a view other than the base view described above.
- a video stream of two views except for the reference view is referred to.
- the present invention proposes a method and apparatus for acquiring and processing video information at such an extended point of time, i.e., signaling information for an extended view video stream.
- an extended view descriptor is used as a method for providing information on an extended view video stream.
- ATSC Advanced Television Systems Committee
- DVD Digital Video Broadcasting
- FIGS. 2 and 3 are diagrams illustrating a case in which information on an EVV stream is provided through a Terrestrial Virtual Channel Table (TVCT) of a Program and System Information Protocol (PSIP) used in ATSC-based digital broadcasting.
- TVCT Terrestrial Virtual Channel Table
- PSIP Program and System Information Protocol
- Fig. 2 shows an example of configuring the EV descriptor of the present invention at this time
- Fig. 3 shows an example of configuring TVCT at this time.
- the video streams taken from each camera have the same field value for setting the positional relationship of the cameras.
- descriptor_tag is a field for identifying the descriptor and has a value of 8 bits.
- descriptor_length represents the total length of the following field in bytes, and has a value of 8 bits.
- reserved is a field that is not currently used by the system or may be used in the future. It is filled with the number of bits with a value of zero until a new definition is created.
- PC_PID represents a PID (Packet Identifier) of a packet including timing information of a program, and has a value of 13 bits.
- number_of_extended_views represents the number of EVV streams and has a value of 10 bits. In the case of stereoscopic video, this value is at least one. That is, in the case of stereoscopic video, since one EVV stream is used in addition to the reference view video stream, the number of EVV streams is at least one.
- one_dimension_camera_setting_flag indicates the array type of the camera and has a value of 1 bit. If the value of this field is '1', it means that the camera array is a one-dimensional horizontal array. If this value is '0', it means that the camera array is a two-dimensional vertical / horizontal array.
- stream_type represents the type of an elementary stream and has a value of 8 bits. For example, if the value of "stream_type" is 0x20, it can be seen that the elementary stream is coded with MVC (Multiview Video Codec).
- MVC Multiview Video Codec
- Elementary_PID includes a PID (Packet Identifier) of an elementary stream and has a value of 13 bits.
- left_right_pos indicates whether the position of the EVV stream is in the right direction or the left direction based on the camera of the base view, and has a value of 2 bits. This field indicates whether the camera is located in the left direction or the right direction with respect to the camera of the reference time point.
- the value is '0' when the camera position is the same as the camera of the base view in the horizontal axis direction.
- this value when the position of the camera is located in the left direction than the camera of the reference time, this value is '1', and when it is located in the right direction than the camera of the reference time, it has a value of '2'.
- the corresponding extended view video stream is output to the right video plane.
- the reference view video stream is output to the left video plane.
- view_position_hor indicates whether the position of the EVV stream was taken from the left or right camera in the horizontal direction with respect to the reference point, or from which multi-view plane to output, and a 6-bit value.
- up_down_pos indicates whether the position of the EVV stream is located in the upper direction or the lower direction with respect to the camera of the reference time point, and has a value of 2 bits. At this time, when the camera is at the same position as the camera of the base view in the vertical axis direction, this value is '0'. In addition, when the EVV stream is at the upper view, the value of "up_down_pos” is “1", and when the EVV stream is at the lower view, the value of "up_down_pos” has the value of "2".
- view_position_ver indicates whether the position of the EVV stream was taken from the upper or lower camera in the vertical direction from the reference point, or from which multi-view plane to output, and a 6-bit value. Has Therefore, in the case of a stereoscopic video using only two video streams, a left video stream and a right video stream, the value of this field need not be used.
- the EV descriptor uses the fields of "left_right_pos” and “up_down_pos”, and “view_position_hor” and “view_position_ver”, and the position of the camera that captured the EVV stream or the video plane to be output (Video) plane) can be specified exactly.
- the camera at the reference point is Camera 1
- the video stream from the camera at the reference point is coded with a codec of MPEG-4 AVC / H.264.
- the values of each field for the video stream captured by the camera at the reference point are all '0'.
- the video streams captured by the camera 0, the camera 2, and the camera 3, except for the reference point camera 1 constitute the EVV stream, and are all coded by MVC (Multiview Video Codec).
- MVC Multiview Video Codec
- the present invention sets the positional information for each camera having a one-dimensional array, so that appropriate positional relationship information can be set for the EVV stream generated by each camera.
- the camera at the reference point is Camera 1
- the video stream generated from the camera at the reference point is encoded in MPEG-4 AVC / H.264.
- each field value of the video stream captured by the camera at the reference point becomes '0'.
- cameras 2 to 5 constitute an EVV stream, and are all coded with MVC.
- the present invention sets position information for each camera having a two-dimensional array, so that appropriate position relationship information can be set for the EVV stream generated by each camera.
- the information on the extended view video stream is included in the EV descriptor, but the information on the reference view video stream may be included in the EV descriptor of the present invention.
- information about the reference view video stream may be included in the EV descriptor along with the EVV stream and processed.
- the configuration of the EV descriptor is almost the same as that of the EV descriptor of FIG. 2, except that the reference number video stream is integrated with the EVV stream by changing the "number_of_extended_views" field of FIG. 2 to "number_of_views".
- the variable i 0, it may be set to indicate information on the reference view video stream.
- FIG. 6 illustrates a configuration in which information about a reference view video stream is included in the EV descriptor of the present invention.
- FIG. 3 illustrates an example of configuring a TVCT including the EV descriptor of the present invention of FIG. 2.
- FIG. 3 illustrates an example of configuring a TVCT including the EV descriptor of the present invention of FIG. 2.
- each field of the TVCT shown in FIG. 3 will be described.
- table_id represents the table to which the section belongs, and has a value of 8 bits.
- section_syntax_indicator indicates that the corresponding section is compatible with Program Specific Information (PSI) of the MPEG-2 System Standard, and has a value of 1 bit.
- PSI Program Specific Information
- reserved is a field that is not currently used by the system or may be used in the future. It is filled with the number of bits with a value of zero until a new definition is created.
- section_length indicates the length of the table following the field in bytes and has a value of 12 bits.
- transport_stream_id is for distinguishing a transport stream corresponding to each output when there are several multiplexers on the network, and has a value of 16 bits.
- version_number indicates the version when the table is created. Whenever the contents of the table are changed, the version number is used to increase the version number and has a 5-bit value.
- current_next_indicator indicates whether the contents of the table are to be applied or to be applied next time, and has a value of 1 bit.
- section_number represents the number of the corresponding section, and has a value of 8 bits.
- last_section_number represents "section_number" of the last section of the current table, and has a value of 8 bits.
- protocol_version indicates the version of the protocol currently being defined and used, and has a value of 8 bits.
- number_channels_in_section designates the number of all virtual channels existing in the TVCT section and has a value of 8 bits.
- short name is seven 16-bit character codes encoded in UNICODE and represents a name of a virtual channel.
- major_channel_number indicates a major channel number associated with a virtual channel, used as a user reference number for the virtual channel, and has a value of 10 bits.
- minor_channel_number is used together with “major_channel_number” to be used as a channel number of two parts and has a value of 10 bits.
- modulation_mode indicates a modulation scheme for a carrier of a corresponding virtual channel and has a value of 8 bits.
- carrier_frequency represents a carrier frequency related to analog / digital transmission of a virtual channel and has a value of 32 bits.
- channel_TSID designates an ID (ID) value of an MPEG-2 transport stream connected to an MPEG-2 transport stream which is a reference of a virtual channel, and has a value of 16 bits.
- program_number is for connecting a program number defined in a PAT (Program Association Table) and a PMT (Program Map Table) of the MPEG-2 system with a virtual channel, and has a value of 16 bits.
- ETM_location indicates that the ETT (Event Text Table) exists in the current channel or other location where the ETT is transmitted, and has a value of 2 bits.
- access_controlled indicates whether access of an event connected to a corresponding virtual channel is restricted, and has a value of 1 bit.
- hidden indicates whether direct access to the corresponding virtual channel is possible and has a value of 1 bit.
- service_type distinguishes whether the type of service carried on the corresponding virtual channel is analog, ATSC DTV (audio television) / audio / data, and has a value of 6 bits.
- source_id indicates a programming source connected to the corresponding virtual channel, and has a value of 16 bits.
- a source refers to one specific source such as video, text, data, or audio.
- descriptors_length represents the total length of the descriptor of the corresponding virtual channel and has a value of 10 bits.
- additional_descriptors_length represents the total length of all TVCT descriptors following the current field, and has a value of 10 bits.
- CRC_32 indicates a value of a cyclic redundancy check (CRC) code used in the MPEG-2 system standard in which the entire section is completed, and has a value of 32 bits. By checking these CRC codes, it is possible to detect the presence of errors in the transmitted section.
- CRC cyclic redundancy check
- the present invention provides information on the EVV stream in each virtual channel through the Terrestrial Virtual Channel Table (TVCT) of the Program and System Information Protocol (PSIP) in ATSC-based digital broadcasting using a fixed virtual channel. Can provide.
- TVCT Terrestrial Virtual Channel Table
- PSIP Program and System Information Protocol
- the EV descriptor of the present invention at this time may be replaced with a component list descriptor defined previously.
- FIG. 7 illustrates the configuration of the component list descriptor when information on the EVV stream is provided through a component list descriptor instead of the EV descriptor of the present invention.
- Component List Descriptor is defined to improve scalability in ATSC (Advanced Television Systems Committee) digital broadcasting, and is located in the Terrestrial Virtual Channel Table (TVCT) in PSIP.
- ATSC Advanced Television Systems Committee
- TVCT Terrestrial Virtual Channel Table
- alterate indicates whether the component list descriptor is an alternate description of a stream associated with a corresponding virtual channel, and has a value of 1 bit.
- component_count represents the number of components and has a value of 7 bits. If there are several EVV streams, this field may indicate the number of EVV streams.
- stream_type represents the type of the elementary stream and has a value of 8 bits.
- MVC Multiview Video Codec
- format_identifier identifies an entity that provides a "stream_type” value and has a value of 32 bits.
- length_of_details indicates the length of a subsequent "stream_info_details" field in bytes and has a value of 8 bits.
- Elementary_PID includes a PID (Packet Identifier) of an elementary stream and has a value of 13 bits. Used to distinguish different EVV streams.
- the present invention may provide information on the EVV stream by using a component list descriptor that is already defined without using a new descriptor called an EV descriptor.
- FIGS. 8 and 9 are diagrams illustrating a case in which information on an EVV stream is provided through an event information table (EIT) of a program and system information protocol (PSIP) used in ATSC-based digital broadcasting.
- EIT event information table
- PSIP program and system information protocol
- FIG. 8 illustrates an example of configuring the EV descriptor of the present invention at this time
- FIG. 9 illustrates an example of configuring an EIT including the EV descriptor of FIG. 8.
- FIG. 9 illustrates an example of configuring an EIT including the EV descriptor of FIG. 8.
- each field of the EIT illustrated in FIG. 9 will be described, but description of a field overlapping with the above-described field will be omitted.
- source_id indicates a programming source connected to the corresponding virtual channel, and has a value of 16 bits.
- a source refers to one specific source such as video, text, data, or audio.
- number_events_in_section indicates the number of events present in the EIT section and has a value of 8 bits.
- Event_id is an identification number indicating a corresponding event and has a value of 14 bits.
- start_time represents the start time of an event as the number of seconds since 12 am January 6, 1980, and has a value of 32 bits.
- length_in_seconds indicates the length of the corresponding event in seconds and has a value of 20 bits.
- title_length indicates the length of "title_text ()" in number of bytes. If this value is '0', it means that there is no title in the corresponding event and has a value of 8 bits.
- title_text () displays the title of the event in a multi-string structure.
- the present invention can also provide information on the EVV stream through the EIT (Event Information Table) of the Program and System Information Protocol (PSIP) used in ATSC-based digital broadcasting.
- EIT Event Information Table
- PSIP Program and System Information Protocol
- the information on the EVV stream is provided through the Event Information Table (EIT) of the Program and System Information Protocol (PSIP), it becomes possible to finely signal whether 3D broadcasting is performed for each event. Therefore, the 2D broadcast program and the 3D broadcast program can be flexibly organized through one virtual channel.
- EIT Event Information Table
- 3D broadcast availability and 3D related parameters may be additionally provided for each event, thereby helping the user to select a program.
- FIG. 10 illustrates the configuration of an EV descriptor of the present invention when information on an EVV stream is provided through a service description table (SIDT) of service information (SI) used in digital broadcasting of a digital video broadcasting (DVB) scheme. An example is shown.
- SIDT service description table
- SI service information
- FIG. 11 illustrates an example of configuring a service description table (SDT) including the EV descriptor of FIG. 10.
- SDT service description table
- Each field constituting the EV descriptor of the present invention shown in FIG. 10 is the same as in FIG. 2, and thus description thereof will be omitted.
- the EV descriptor of FIG. 10 does not include the "PCR_PID", “stream_type”, and “elementary_PID” fields unlike FIG. 2 in the ATSC scheme using the fixed virtual channel.
- FIG. 11 illustrates an example of configuring an SDT including the EV descriptor of FIG. 10.
- FIG. 11 illustrates an example of configuring an SDT including the EV descriptor of FIG. 10.
- each field of the SDT shown in FIG. 11 will be described.
- table_id represents the table to which the section belongs, and has a value of 8 bits.
- section_syntax_indicator indicates that the corresponding section is compatible with the PSI of the MPEG-2 system standard and has a value of 1 bit.
- reserved is a field that is not currently used by the system or may be used in the future. It is filled with the number of bits with a value of zero until a new definition is created.
- section_length represents the length of the corresponding section and has a value of 12 bits.
- transport_stream_id is for distinguishing a transport stream corresponding to each output when there are several multiplexers on the network, and has a value of 16 bits.
- version_number is used to inform that the content is different from the previously transmitted service information or program guide information, and is used in a manner of increasing the “version_number” used previously in order, and has a value of 5 bits.
- current_next_indicator indicates whether the content to be transmitted is the content to be immediately applied or the content to be applied next time, and has a value of 1 bit.
- section_number represents the number of the corresponding section, and has a value of 8 bits.
- last_section_number represents "section_number" of the last section of the current table, and has a value of 8 bits.
- original_network_id indicates “network_id” which initially started transmitting the transport stream, and has a value of 16 bits.
- network_id is a unique identification number used to distinguish the transmitted network from other networks.
- service_id is a number for distinguishing the service from other services in the transport stream, and has a value of 16 bits.
- EIT_schedule_flag indicates whether event information table (EIT) schedule information exists in a corresponding transport stream, and has a value of 1 bit.
- EIT_present_following_flag indicates whether present or following information of the EIT exists in the corresponding transport stream, and has a value of 1 bit.
- running_status represents the current state of the service, and has a value of 3 bits.
- free_CA_mode indicates whether an elementary stream of a corresponding service is scrambled and has a value of 1 bit.
- descriptors_loop_length represents the total length of the following descriptor and has a value of 12 bits.
- CRC_32 indicates a value of the CRC code used in the MPEG-2 system standard in which the entire section is completed, and has a value of 32 bits.
- the present invention can provide information on the EVV stream through a Service Description Table (SDT) of Service Information (SI) used in digital video broadcasting (DVB) digital broadcasting.
- SDT Service Description Table
- SI Service Information
- FIG. 12 shows a configuration example of a PMT including such an EV descriptor.
- FIG. 12 illustrates an example of configuring a PMT (Program Map Table) in FIG. 11.
- the descriptor "extended_view_descriptor1" includes information about the number of EVV streams and camera arrangements, and the descriptor “extended_view_descriptor2" includes position information of each camera.
- table_id represents the table to which the section belongs, and has a value of 8 bits.
- section_syntax_indicator indicates that the corresponding section is compatible with the PSI of the MPEG-2 system standard and has a value of 1 bit.
- section_length represents the length of the corresponding section and has a value of 12 bits.
- program number represents a program in which "program_map_pid” is to be used in a transport stream, and has a value of 16 bits.
- program_map_pid indicates a PID of a transport stream packet including a program map section applicable to the program designated by "program number”.
- the “version_number” is used to inform that the content is different from the previously transmitted service information or program guide information.
- the “version_number” is used in a manner of sequentially increasing the “version_number” used previously, and has a value of 5 bits.
- current_next_indicator indicates whether the content to be transmitted is the content to be immediately applied or the content to be applied next time, and has a value of 1 bit.
- section_number represents the number of the corresponding section, and has a value of 8 bits.
- last_section_number represents "section_number" of the last section of the current table, and has a value of 8 bits.
- PCR_PID contains the PID of a packet including timing information of a program, and has a value of 13 bits.
- program_info_length represents the size of the following “program_info descriptor” and has a value of 12 bits.
- stream_type represents the type of the elementary stream and has a value of 8 bits.
- Elementary_PID contains the PID of the elementary stream and has a value of 13 bits.
- ES_info_length represents the size of the "ES_info descriptor" immediately following, and has a value of 12 bits.
- the view position information (view_position) and the PID information are provided through the EV descriptor information included in the service description table (SDT) of FIG. 11 and the EV2 descriptor information included in the program map table (PMT) of FIG.
- SDT service description table
- PMT program map table
- the present invention can provide information on an EVV stream for each service through a service description table (SIDT) of service information (SI) used in digital video broadcasting (DVB) digital broadcasting.
- SIDT service description table
- SI service information
- DVD digital video broadcasting
- a component tag when information on the EVV stream is provided through a service description table (SDT) of service information (SI), a component tag may be used.
- SDT service description table
- SI service information
- FIG. 13 illustrates a case in which information on an EVV stream is provided through a service description table (SDT) of service information (SI) used in digital broadcasting of a digital video broadcasting (DVB) scheme, using a component tag.
- SDT service description table
- SI service information
- DVB digital video broadcasting
- FIG. 14 illustrates an example of configuring a service description table (SDT) including the EV descriptor of FIG. 13.
- SDT service description table
- FIGS. 13 and 14 are similar to the configurations of FIGS. 10 and 11, respectively, except that they include a "component_tag" field. Therefore, description of each field of FIG. 13 and FIG. 14 is abbreviate
- the "component_tag” field is a field used to identify a component, has a value of 8 bits, and is "component_tag" of a stream identifier descriptor (stream_identifier_descriptor) located in a program map table (PMT) of program specific information (PSI). It is set to have the same value as the field.
- PMT program map table
- a component tag is assigned to an EV descriptor located in the SDT, and a component tag having the same value is assigned through a stream identifier descriptor in the PMT.
- the view position information (view_position) and the PID information are connected to grasp the PID information of each stream.
- the view position information (view_position) in the case of a stereoscopic image, a "left_right_pos" field may be used.
- Fig. 15 shows the configuration of such a PMT (Program Map Table).
- PMT Program Map Table
- the overall configuration of the PMT of FIG. 15 remains the same as in the conventional digital broadcast transmission, except that a component tag is assigned through a stream identifier descriptor. There is a difference in that. Since each field of the PMT of FIG. 15 is the same as in FIG. 12 described above, description thereof will be omitted.
- the present invention may provide information on the EVV stream using a component tag. have.
- a component tag when providing information on the EVV stream through the Event Information Table (EIT) of the service information (SI), a component tag may be used.
- EIT Event Information Table
- SI service information
- FIG. 16 illustrates a case in which information on an EVV stream is provided through an event information table (EIT) of service information (SI) used in digital broadcasting of a digital video broadcasting (DVB) scheme, by using a component tag.
- EIT event information table
- SI service information
- DVB digital video broadcasting
- FIG. 17 illustrates an example of configuring an event information table (EIT) including the EV descriptor of FIG. 16.
- EIT event information table
- the "component_tag” field has the same value as the "component_tag” field of the stream identifier descriptor (stream_identifier_descriptor) located in the PMT (Program Map Table) of PSI (Program Specific Information).
- each field constituting the EV descriptor illustrated in FIG. 16 is the same as in FIG. 10, and thus description thereof will be omitted.
- FIG. 17 illustrates an example of configuring an event information table (EIT) including the EV descriptor of FIG. 16.
- EIT event information table
- table_id represents the table to which the section belongs, and has a value of 8 bits.
- section_syntax_indicator indicates that the corresponding section is compatible with the PSI of the MPEG-2 system standard and has a value of 1 bit.
- “reserved_future_use” and “reserved” are fields that are not currently used by the system, or fields that may be used in the future, filled with the number of bits with zero values until a new definition is created.
- section_length represents the length of the corresponding section and has a value of 12 bits.
- service_id is a number for distinguishing the service from other services in the transport stream, and has a value of 16 bits.
- version_number is used to inform that the content is different from the previously transmitted service information or program guide information, and is used in a manner of increasing the “version_number” used previously in order, and has a value of 5 bits.
- current_next_indicator indicates whether the content to be transmitted is the content to be immediately applied or the content to be applied next time, and has a value of 1 bit.
- section_number represents the number of the corresponding section, and has a value of 8 bits.
- last_section_number represents "section_number" of the last section of the current table, and has a value of 8 bits.
- transport_stream_id is a unique ID number used to distinguish it from other transport streams multiplexed in the transport system and has a value of 16 bits.
- original_network_id indicates “network_id” which initially started transmitting the transport stream, and has a value of 16 bits.
- network_id is a unique identification number used to distinguish the transmitted network from other networks.
- segment_last_section_number represents “section_number” of the last section of the current subtable, and has a value of 8 bits. If the subtable is not segmented, it has a value such as "last_section_number”.
- last_table_id indicates “table_id” to be used last, and has a value of 8 bits.
- Event_id is a number for distinguishing a corresponding individual event and has a value of 16 bits.
- start_time indicates the start time of the event in Universal Time Co-ordinated (UTC) and Modified Julian Date (MJD), and has a value of 40 bits.
- “duration” indicates the time of the minute and the second as 4 bits of binary coded decimal (BCD), and has a value of 24 bits.
- running_status indicates the current state of the event and has a value of 3 bits.
- free_CA_mode indicates whether an elementary stream of a corresponding service is scrambled and has a value of 1 bit.
- descriptors_loop_length represents the total length of the following descriptor and has a value of 12 bits.
- CRC_32 indicates a value of the CRC code used in the MPEG-2 system standard in which the entire section is completed, and has a value of 32 bits.
- a component tag is assigned to an EV descriptor located in the EIT, and a component tag having the same value is assigned through a stream identifier descriptor on a PMT.
- PID information of each EVV stream is obtained.
- the present invention may provide information on the EVV stream using a component tag. have.
- FIG. 18 is a block diagram illustrating a configuration of a digital broadcast receiver according to an embodiment of the present invention.
- the digital broadcast receiver of the present invention receives a digital broadcast signal, detects the corresponding signal and corrects an error to generate a transport stream (Trasport Stream), transport.
- Demultiplexer 1810 that performs filtering and parsing on the Trasport Stream, PID (Packet Identifier) information, and extended view video information of the EVV stream from the table information received from the demultiplexer 1810 PSIP or PSI / SI processor 1820 for extracting EV information, A / V decoder 1830 for decoding elementary streams, and PSIP or PSI / SI processor 1820
- An output formatting unit 1840 is configured to format the decoded EVV stream and the reference view video stream according to the 3D image display output based on the extracted EV information.
- the tuner 1800 receives a digital broadcast signal, performs demodulation, detects the signal, corrects an error, and generates a transport stream.
- image data transmitted by a digital broadcast signal is formatted in a transport stream format of a moving picture expert group (MPEG) system.
- MPEG moving picture expert group
- the demultiplexer 1810 generates an elementary stream of video information and audio information by performing filtering and parsing processes to filter packets to be reproduced for the transport stream. do.
- the PSIP or PSI / SI processor 1820 includes a program map table (PMT), a terrestrial virtual channel table (TVCT), a service description table (SDT), an event information table (EIT), and the like from the demultiplexer 1810.
- PMT program map table
- TVCT terrestrial virtual channel table
- SDT service description table
- EIT event information table
- the table information PID (Packet Identifier) information and EV information for the EVV stream are extracted.
- the EV information includes the number of EVV streams, the positional relationship of the EVV streams with respect to the reference view video stream, and the like.
- the A / V decoder 1830 decodes the elementary stream to generate a video stream such as an EVV stream and a reference view video stream.
- the A / V decoder 1830 is also configured to decode the audio information, but the description thereof will be omitted for the sake of simplicity.
- the output formatting unit 1840 formats and transmits the EVV stream and the reference view video stream according to the stereoscopic display output based on the EV information extracted by the PSIP or PSI / SI processor 1820.
- the output formatting unit 1840 uses view position information (view_position) of the EVV stream.
- view position information may use a "right_left_pos" field of the EVV stream.
- the EVV stream when the value of the "right_left_pos" field of the EVV stream is 1, since the view position of the EVV stream is located to the left side of the reference video stream, the EVV stream is output to the left video plane.
- the reference point video stream is formatted to be output to the right video plane.
- the digital broadcast receiver of the present invention it is possible to identify and process a signal for stereoscopic video in digital broadcasting, thereby enabling stereoscopic video display.
- FIG. 19 illustrates that when information on an EVV stream is provided through TVCT of PSIP used in ATSC-based digital broadcasting, the digital broadcast receiver of the present invention checks and processes information on the EVV stream and outputs a 3D image. It is an operational flowchart illustrating the method.
- the demultiplexer 1810 filters the transport stream packet including the table information with respect to the transport stream output from the tuner 1800 (S1900).
- the PID of the transport stream packet including the TVCT is set to 0x1FFB.
- the demultiplexer 1810 obtains TVCT by parsing section data using table ID information (S1910).
- the PSIP or PSI / SI processor 1820 parses and stores the EV descriptor for the virtual channel set by "major_channel_number” and “minor_channel_number” of the TVCT (S1920).
- the PSIP or PSI / SI processor 1820 obtains PID information on the reference view video stream using a service location descriptor in the TVCT (S1930).
- the PSIP or PSI / SI processor 1820 acquires PID information and EV information on the EVV stream using the EV descriptor (S1940).
- the demultiplexer 1810 performs PID filtering on the reference view video stream using the PID information of the reference view video stream, and the A / V decoder 1830 decodes the corresponding elementary stream ( S1950).
- the demultiplexer 1810 performs PID filtering on the EVV stream using the PID information on the EVV stream, and the A / V decoder 1830 decodes the corresponding elementary stream (S1960).
- the output formatting unit 1840 formats and transmits the EVV stream and the reference view video stream according to the stereoscopic display output using the EV information (S1970).
- the digital broadcast receiver of the present invention may check and process the information on the EVV stream and output a stereoscopic image.
- FIG. 20 illustrates that when information on an EVV stream is provided through a PMT (Program Map Table) of PSIP in ATSC-based digital broadcasting, the digital broadcasting receiver of the present invention checks and processes the information on the EVV stream.
- PMT Program Map Table
- the demultiplexer 1810 filters a transport stream packet including table information on the transport stream output from the tuner 1800 (S2000).
- the PID of the transport stream packet including the PMT is set to 0x1FFB.
- the demultiplexer 1810 obtains a PMT by parsing section data using table ID information (S2010).
- the PSIP or PSI / SI processor 1820 reads an EV descriptor for a program in the PMT and acquires EV information for the corresponding program (S2020).
- the PSIP or PSI / SI processor 1820 acquires PID information on each EVV stream in the process of reading the EV descriptor of the PMT (S2030).
- the PSIP or PSI / SI processor 1820 reads the TVCT and acquires channel information corresponding to the 3D program obtained from the PMT (S2040).
- the demultiplexer 1810 performs PID filtering on the reference view video stream using the PID information of the reference view video stream, and the A / V decoder 1830 decodes the corresponding elementary stream ( S2050).
- the demultiplexer 1810 performs PID filtering on the EVV stream using the PID information on the EVV stream, and the A / V decoder 1830 decodes the corresponding elementary stream (S2060).
- the output formatting unit 1840 formats and transmits the EVV stream and the reference view video stream according to the stereoscopic display output using the EV information (S2070).
- the digital broadcast receiver of the present invention when provided with information on the EVV stream through a Program Map Table (PMT) of Program Specific Information (PSI) in ATSC-based digital broadcasting,
- PMT Program Map Table
- PSI Program Specific Information
- FIG. 21 illustrates that when information on an EVV stream is provided through an event information table (EIT) of PSIP in ATSC-based digital broadcasting, the digital broadcast receiver of the present invention checks and processes the information on the EVV stream and stereoscopically. It is an operation flowchart explaining a method of outputting an image.
- EIT event information table
- the demultiplexer 1810 filters the transport stream packet including the table information with respect to the transport stream output from the tuner 1800 (S2100).
- the demultiplexer 1810 obtains a master guide table (MGT) and a TVCT by parsing section data using table ID information (S2110).
- MCT master guide table
- S2110 table ID information
- the PSIP or PSI / SI processor 1820 detects PID information of the transport stream including the EIT from the MGT (S2120).
- the demultiplexer 1810 filters the transport stream packet corresponding to the PID of the EIT identified by the PSIP or the PSI / SI processor 1820 (S2130).
- the PSIP or PSI / SI processor 1820 detects and stores EV information of each virtual channel event using the EV descriptor for each event in the EIT (S2140).
- the PSIP or PSI / SI processor 1820 may grasp PID information on the reference view video stream using a service location descriptor in the TVCT (S2150).
- the PSIP or PSI / SI processor 1820 detects PID information on the EVV stream using the EV descriptor obtained from the EIT (S2160).
- the demultiplexer 1810 performs PID filtering on the reference view video stream by using the identified PID information of the reference view video stream, and the A / V decoder 1830 decodes the corresponding elementary stream. (S2170).
- the demultiplexer 1810 performs PID filtering on the EVV stream using the identified PID information on the EVV stream, and the A / V decoder 1830 decodes the corresponding elementary stream (S2180). ).
- the output formatting unit 1840 formats and transmits the EVV stream and the reference view video stream according to the stereoscopic display output using the EV information (S2190).
- the digital broadcast receiver of the present invention checks and processes the information on the EVV stream when the information on the EVV stream is provided through the event information table (EIT) of the PSIP in the ATSC-based digital broadcast. Stereoscopic video can be output.
- EIT event information table
- the PSIP or PSI / SI processor 1820 uses the EV descriptor obtained from the EIT to determine PID information on the EVV stream (ie, after step S2160), and then broadcasts a message to inform the user whether or not the 3D broadcast is on a per-event basis. It is also possible to display guide information.
- FIG. 22 illustrates an example of an electronic program guide for notifying whether a broadcast program is 3D broadcast through the method of FIG. 21.
- the EV descriptor information previously acquired and stored at the time of updating the EIT version is updated, so that the information of the EV descriptor related to the event is always kept up to date. Can be.
- FIG. 23 shows information on an EVV stream when a digital broadcast receiver of the present invention provides information on an EVV stream through a Program Map Table (PMT) of Program Specific Information (PSI) in DVB-based digital broadcasting.
- PMT Program Map Table
- PSI Program Specific Information
- the demultiplexer 1810 filters the transport stream packet including the table information with respect to the transport stream output from the tuner 1800 (S2300).
- the demultiplexer 1810 obtains the SDT by parsing the section data using the table ID information (S2310).
- the PSIP or PSI / SI processor 1820 parses and stores the EV descriptor for the service set by the "service_id" value of the SDT (S2320).
- the PSIP or PSI / SI processor 1820 extracts PID information on the reference video stream using a PID loop in the PMT (S2330), and then uses the EV1 descriptor and the EV2 descriptor included in the PMT to evaluate the EVV. PID information about the stream is extracted (S2340).
- the PSIP or PSI / SI processor 1820 connects the view position information (view_position) and the PID information by using the EV descriptor information of the SDT stored previously and the EV2 descriptor information of the PMT (S2350).
- view_position the view position information
- PID the physical information of the SDT stored previously
- EV2 descriptor information of the PMT S2350
- the view position information in the case of a stereoscopic image display, the "left_right_pos" field may be used.
- the demultiplexer 1810 performs PID filtering on the reference view video stream by using the identified PID information of the reference view video stream, and the A / V decoder 1830 decodes the corresponding elementary stream. (S2360).
- the demultiplexer 1810 performs PID filtering on the EVV stream using the identified PID information on the EVV stream, and the A / V decoder 1830 decodes the corresponding elementary stream (S2370). ).
- the output formatting unit 1840 formats and transmits the EVV stream and the reference view video stream according to the stereoscopic display output using the EV information (S2380).
- the digital broadcast receiver of the present invention when the digital broadcast receiver of the present invention is provided with information on the EVV stream through a Program Map Table (PMT) of Program Specific Information (PSI) in a DVB-based digital broadcast,
- PMT Program Map Table
- PSI Program Specific Information
- FIG. 24 is a diagram illustrating a method for providing information on an EVV stream through a Service Description Table (SDT) of Service Information (SI) in a DVB-based digital broadcasting.
- FIG. 24 illustrates information on an EVV stream using a component tag.
- SDT Service Description Table
- SI Service Information
- the demultiplexer 1810 filters the transport stream packet including the table information with respect to the transport stream output from the tuner 1800 (S2400).
- the demultiplexer 1810 obtains the SDT by parsing the section data using the table ID information (S2410).
- the PSIP or PSI / SI processor 1820 parses and stores the EV descriptor for the service set by the "service_id" value of the SDT (S2420).
- the PSIP or PSI / SI processor 1820 extracts PID information on the reference view video stream using a PID loop in the PMT (S2430).
- the PSIP or PSI / SI processor 1820 may include a component tag ("component_tag”) of the EV descriptor of the SDT previously stored and a component tag (stream identifier descriptor) of the stream identifier descriptor included in the PMT of the PSI. "component_tag”) is matched, and the view position information (view_position) and the PID information are connected (S2440).
- the view position information in the case of a stereoscopic image display, the "left_right_pos" field may be used.
- the demultiplexer 1810 performs PID filtering on the reference view video stream by using the identified PID information of the reference view video stream, and the A / V decoder 1830 decodes the corresponding elementary stream. (S2450).
- the demultiplexer 1810 performs PID filtering on the EVV stream using the identified PID information on the EVV stream, and the A / V decoder 1830 decodes the corresponding elementary stream (S2460). ).
- the output formatting unit 1840 formats and transmits the EVV stream and the reference view video stream according to the stereoscopic display output using the EV information (S2470).
- the digital broadcast receiver of the present invention in the DVB method of digital broadcasting, in particular among the methods for providing information about the EVV stream through the Service Description Table (SDT) of the SI (Service Information) (component tag)
- SI Service Information
- the stereoscopic image may be output by identifying and processing the information on the EVV stream.
- FIG. 25 is a diagram illustrating a method of providing information on an EVV stream through an event information table (EIT) of service information (SI) in a DVB-based digital broadcasting.
- EIT event information table
- SI service information
- FIG. 25 is a diagram illustrating a method of providing information on an EVV stream through an event information table (EIT) of service information (SI) in a DVB-based digital broadcasting.
- EIT event information table
- SI service information
- the demultiplexer 1810 filters the transport stream packet including the SDT with respect to the transport stream output from the tuner 1800 (S2500).
- the PID of the transport stream packet including the SDT is designated as 0x0011.
- the demultiplexer 1810 obtains an SDT by parsing section data using table ID information (S2510).
- the demultiplexer 1810 filters the transport stream packet including the EIT with respect to the transport stream (S2520). At this time, the PID of the transport stream packet including the EIT is designated as 0x0012.
- the demultiplexer 1810 obtains an EIT by parsing section data using table ID table_id information (S2530).
- the PSIP or PSI / SI processor 1820 detects and stores EV information of each event using the EV descriptor for each event in the EIT (S2540).
- the PSIP or PSI / SI processor 1820 extracts PID information on the reference view video stream using a PID loop in the PMT (S2550).
- the PSIP or PSI / SI processor 1820 may include a component tag ("component_tag”) of the EV descriptor of the EIT previously stored and a component tag (stream identifier descriptor) included in the PMT of the PSI. "component_tag”) is matched to connect view position information (view_position) and PID information (S2560).
- view_position view_position
- PID information S2560.
- view position information in the case of a stereoscopic image display, the "left_right_pos" field may be used.
- the demultiplexer 1810 performs PID filtering on the reference view video stream by using the identified PID information of the reference view video stream, and the A / V decoder 1830 decodes the corresponding elementary stream. (S2570).
- the demultiplexer 1810 performs PID filtering on the EVV stream using the identified PID information on the EVV stream, and the A / V decoder 1830 decodes the corresponding elementary stream (S2580). ).
- the output formatting unit 1840 formats and transmits the EVV stream and the reference view video stream according to the stereoscopic display output using the EV information (S2590).
- the digital broadcasting receiver of the present invention provides a method for providing information on an EVV stream through an event information table (EIT) of service information (SI) in a digital video broadcasting (DVB) method.
- EIT event information table
- SI service information
- DVD digital video broadcasting
- the PSIP or PSI / SI processor 1820 grasps EV information which is information on the EVV stream of each event using the EV descriptor for each event in the EIT (ie, after step S2540), the user as shown in FIG. 22. It is also possible to display broadcast guide information informing whether or not 3D broadcast for each event.
- the EV descriptor information previously acquired and stored at the time of updating the EIT version can be updated, so that the information of the EV descriptor related to the event can always be kept up to date. have.
- the stereoscopic image is generated by selecting the EVV stream having the position information corresponding to the changed display direction to generate the stereoscopic image. It is also possible to change the display direction.
- screen switching from the user to the left is selected while displaying a stereoscopic image using the video stream from the camera 1 as the reference point and the video stream from the camera 2 as the extended point. Can be.
- the digital broadcasting receiver of the present invention changes the configuration of the video stream for forming the stereoscopic image so that the video stream from the camera 1, which is the reference point, and the left direction thereof are changed.
- An EVV stream from camera 0, which is a video stream, is selected to generate a stereoscopic image.
- the present invention can change the display direction of the stereoscopic image correspondingly according to the user's direction switching selection.
- a computer program (executed by a computer, a processor, a controller, etc.) stored in a computer-executable medium for implementing a method of receiving a stereoscopic image signal and a receiving apparatus of a stereoscopic image signal in digital broadcasting is It may include one or more program code sections for performing various tasks.
- a software tool (executed by a computer, a processor, a controller, etc.) stored in a computer-executable medium for implementing a method of receiving a stereoscopic image signal and a receiving apparatus of the stereoscopic image signal in digital broadcasting, It can contain parts of program code that perform a variety of tasks.
- the present invention relates to various types of devices configured to receive and process digital broadcast signals, that is, to all devices capable of receiving and processing digital broadcast signals such as digital TVs, LCD display devices, personal media players (PMPs), mobile phones, and the like. Available.
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- Signal Processing (AREA)
- Library & Information Science (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims (19)
- 디지털 방송 수신장치에 있어서,수신한 디지털 방송 신호를 역다중화하는 역다중화부;역다중화된 디지털 방송 신호로부터 확장시점 비디오 정보를 추출하는 PSIP 또는 PSI/SI 프로세서;상기 역다중화된 디지털 방송 신호로부터 확장시점 비디오 스트림 및 기준시점 비디오 스트림을 디코딩하는 디코더; 및상기 확장시점 비디오 정보에 기초하여, 상기 확장시점 비디오 스트림 및 상기 기준시점 비디오 스트림을 포맷팅하는 출력 포맷팅부를 구비하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 1 항에 있어서,상기 확장시점 비디오 정보는, 상기 확장시점 비디오 스트림을 생성한 카메라와 상기 기준시점 비디오 스트림을 생성한 카메라 간의 상대적 위치 관계, 상기 확장시점 비디오 스트림의 갯수, 및 상기 카메라의 배열 구조 정보 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 2 항에 있어서,상기 상대적 위치 관계는, 상기 기준시점 비디오 스트림을 생성한 카메라를 기준으로 하여, 상기 확장시점 비디오 스트림을 생성한 카메라가 위치하는 방향 및 상기 방향으로의 이격 정도 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 1 항에 있어서,상기 디지털 방송 신호가 ATSC(Advanced Television Systems Committee) 방식에 따르는 경우,상기 확장시점 비디오 정보는, PSIP(Program and System Information Protocol)의 TVCT(Terrestrial Virtual Channel Table), EIT(Event Information Table), 또는 PSI(Program Specific Information)의 PMT(Program Map Table) 중 적어도 어느 하나에 포함되어 있는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 1 항에 있어서,상기 디지털 방송 신호가 DVB(Digital Video Broadcasting) 방식에 따르는 경우,상기 확장시점 비디오 정보는, SI(Service Information)의 SDT(Service Description Table), EIT(Event Information Table) 또는 PSI(Program Specific Information)의 PMT(Program Map Table) 중 적어도 어느 하나에 포함되어 있는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 1 항에 있어서,상기 확장시점 비디오 정보는, 상기 확장시점 비디오 스트림에 대한 디스크립터(Descriptor)의 형태로 전달되는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 1 항에 있어서,상기 확장시점 비디오 스트림은, MVC(Multiview Video Codec) 로 코딩되어 있는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 1 항에 있어서,상기 확장시점 비디오 정보는, 상기 기준시점 비디오 스트림에 대한 정보도 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 제 2 항에 있어서,상기 입체영상의 표시 방향을 변경하는 선택이 입력되는 경우, 변경되는 표시 방향에 대응하는 상기 상대적 위치 관계를 갖는 상기 확장시점 비디오 스트림을 선택하여 상기 입체영상을 생성하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신장치.
- 디지털 방송 신호를 수신 및 처리하는 방법에 있어서,디지털 방송 신호를 수신하여 이를 역다중화하는 제1 단계;역다중화된 디지털 방송 신호로부터 확장시점 비디오 정보를 추출하는 제2 단계; 및상기 역다중화된 디지털 방송 신호로부터 확장시점 비디오 스트림 및 기준시점 비디오 스트림을 디코딩하고, 상기 확장시점 비디오 정보에 기초하여 상기 확장시점 비디오 스트림 및 상기 기준시점 비디오 스트림을 포맷팅하여 디스플레이 하는 제3 단계를 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 10 항에 있어서,상기 확장시점 비디오 정보는, 상기 확장시점 비디오 스트림을 생성한 카메라와 상기 기준시점 비디오 스트림을 생성한 카메라 간의 상대적 위치 관계, 상기 확장시점 비디오 스트림의 갯수, 및 상기 카메라의 배열 구조 정보 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 11 항에 있어서,상기 상대적 위치 관계는, 상기 기준시점 비디오 스트림을 생성한 카메라를 기준으로 하여, 상기 확장시점 비디오 스트림을 생성한 카메라가 위치하는 방향 및 상기 방향으로의 이격 정도 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 10 항에 있어서,상기 디지털 방송 신호가 ATSC(Advanced Television Systems Committee) 방식에 따르는 경우,상기 확장시점 비디오 정보는, PSIP(Program and System Information Protocol)의 TVCT(Terrestrial Virtual Channel Table), EIT(Event Information Table), 또는 PSI(Program Specific Information)의 PMT(Program Map Table) 중 적어도 어느 하나에 포함되어 있는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 10 항에 있어서,상기 디지털 방송 신호가 DVB(Digital Video Broadcasting) 방식에 따르는 경우,상기 확장시점 비디오 정보는, SI(Service Information)의 SDT(Service Description Table), EIT(Event Information Table) 또는 PSI(Program Specific Information)의 PMT(Program Map Table) 중 적어도 어느 하나에 포함되어 있는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 10 항에 있어서,상기 확장시점 비디오 정보는, 상기 확장시점 비디오 스트림에 대한 디스크립터(Descriptor)의 형태로 전달되는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 10 항에 있어서,상기 제3 단계는,역다중화된 디지털 방송 신호로부터 상기 확장시점 비디오 스트림 및 상기 기준시점 비디오 스트림을 디코딩하는 제4 단계; 및상기 확장시점 비디오 정보에 기초하여, 상기 확장시점 비디오 스트림 및 상기 기준시점 비디오 스트림을 포맷팅하여 디스플레이 하는 제5 단계를 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 10 항에 있어서,상기 확장시점 비디오 스트림은, MVC(Multiview Video Codec) 로 코딩되어 있는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 10 항에 있어서,상기 확장시점 비디오 정보는, 상기 기준시점 비디오 스트림에 대한 정보도 포함하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
- 제 11 항에 있어서,상기 입체영상의 표시 방향을 변경하는 선택이 입력되는 경우, 변경되는 표시 방향에 대응하는 상기 상대적 위치 관계를 갖는 상기 확장시점 비디오 스트림을 선택하여 상기 입체영상을 생성하는 것을 특징으로 하는 입체영상 디스플레이가 가능한 디지털 방송 수신방법.
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KR1020117013890A KR101245591B1 (ko) | 2008-12-18 | 2009-06-26 | 입체영상 디스플레이가 가능한 디지털 방송 수신방법, 및 이를 이용한 디지털 방송 수신장치 |
US13/133,291 US8823772B2 (en) | 2008-12-18 | 2009-06-26 | Digital broadcasting reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using the same |
CN200980150630.4A CN102257823B (zh) | 2008-12-18 | 2009-06-26 | 用于显示立体图像的数字广播接收方法及使用该方法的数字广播接收装置 |
EP09833561.5A EP2352302B1 (en) | 2008-12-18 | 2009-06-26 | Digital broadcasting reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using same |
KR1020137003576A KR101578740B1 (ko) | 2008-12-18 | 2009-06-26 | 입체영상 디스플레이가 가능한 디지털 방송 수신방법, 및 이를 이용한 디지털 방송 수신장치 |
KR1020127024512A KR101364027B1 (ko) | 2008-12-18 | 2009-06-26 | 입체영상 디스플레이가 가능한 디지털 방송 수신방법, 및 이를 이용한 디지털 방송 수신장치 |
CA2744408A CA2744408C (en) | 2008-12-18 | 2009-06-26 | Digital broadcast reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using same |
US13/713,738 US9516294B2 (en) | 2008-12-18 | 2012-12-13 | Digital broadcasting reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using same |
US13/915,429 US10015467B2 (en) | 2008-12-18 | 2013-06-11 | Digital broadcasting reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using same |
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US13/713,738 Continuation US9516294B2 (en) | 2008-12-18 | 2012-12-13 | Digital broadcasting reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using same |
US13/915,429 Continuation US10015467B2 (en) | 2008-12-18 | 2013-06-11 | Digital broadcasting reception method capable of displaying stereoscopic image, and digital broadcasting reception apparatus using same |
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US20130278720A1 (en) | 2013-10-24 |
KR101364027B1 (ko) | 2014-02-18 |
US9516294B2 (en) | 2016-12-06 |
KR20110104501A (ko) | 2011-09-22 |
CA2744408A1 (en) | 2010-06-24 |
KR101245591B1 (ko) | 2013-03-20 |
KR20130029119A (ko) | 2013-03-21 |
US8823772B2 (en) | 2014-09-02 |
EP2352302A4 (en) | 2012-08-08 |
EP2352302A1 (en) | 2011-08-03 |
KR101578740B1 (ko) | 2015-12-21 |
KR20120120460A (ko) | 2012-11-01 |
CN102257823B (zh) | 2017-03-08 |
US20130141533A1 (en) | 2013-06-06 |
US20110234755A1 (en) | 2011-09-29 |
CN102257823A (zh) | 2011-11-23 |
EP2352302B1 (en) | 2019-04-17 |
EP2538684A1 (en) | 2012-12-26 |
US20180205923A9 (en) | 2018-07-19 |
US10015467B2 (en) | 2018-07-03 |
CA2744408C (en) | 2014-09-09 |
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