WO2007067020A1 - Systeme et procede d'emission/reception de video tridimensionnelle en diffusion numerique - Google Patents

Systeme et procede d'emission/reception de video tridimensionnelle en diffusion numerique Download PDF

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Publication number
WO2007067020A1
WO2007067020A1 PCT/KR2006/005379 KR2006005379W WO2007067020A1 WO 2007067020 A1 WO2007067020 A1 WO 2007067020A1 KR 2006005379 W KR2006005379 W KR 2006005379W WO 2007067020 A1 WO2007067020 A1 WO 2007067020A1
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WO
WIPO (PCT)
Prior art keywords
video
supplementary
data
stream
psi
Prior art date
Application number
PCT/KR2006/005379
Other languages
English (en)
Inventor
Sung-Hoon Kim
Byung-Jun Bae
Kug-Jin Yun
Jae-Young Lee
Seung-Won Kim
Chung-Hyun Ahn
Nam-Ho Hur
Soo-In Lee
Chieteuk Ahn
Original Assignee
Electronics And Telecommunications Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020060069959A external-priority patent/KR100747598B1/ko
Application filed by Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to US12/096,198 priority Critical patent/US8483269B2/en
Publication of WO2007067020A1 publication Critical patent/WO2007067020A1/fr
Priority to US13/913,811 priority patent/US9380288B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/597Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/194Transmission of image signals

Definitions

  • the present invention relates to a system and method for transmitting/receiving three dimensional (3D) video based on digital broadcasting; and more particularly, to a system and method for transmitting/receiving 3D video for enabling 3D digital broadcasting while sustaining the backward compatibility with a conventional two dimensional (2D) digital broadcasting system by transmitting a 2D image stream as an normal stream and transmitting the supplementary information for 3D broadcasting, for example, image data of other view points, depth information, and disparity information, using a robust stream synchronized with the normal stream based on ATSC E-VSB scheme used in conventional digital broadcasting.
  • (3D) video contents based on a digital broadcasting transmission system were introduced in a Korean Patent Publication No. 1999-00600127, entitled “Method and apparatus for transmitting/receiving 3D video in digital broadcasting," and published on July 26th 1999, a Korean Patent Publication No. 1995-0010662 entitled “Method for processing 3D video signal transmitting and receiving 3d broadcasting", and published on April 28th 1995, and a Korean Patent Publication No. 1989-0015620 entitled “Television for receiving 3D video signal", and published on August 30th 1989.
  • a transmitter transmits a MPEG-TS with supplementary packet identifier (PID) information for identifying a left image data and a right image data of a stereoscopic 3D video additionally with typical PID information that represents whether the MPEG-TS is audio/ video data or supplementary data.
  • PID packet identifier
  • a receiver extracts left image data and right image data from a 3D video data, and reproduces the 3D video using two decoders.
  • the conventional technologies splits the left image data and the right image data by adding the supplementary PID value into four program map tables (PMT) for identifying a left video signal, a right video signal, an audio signal and supplementary information.
  • PMT program map tables
  • the conventional 3D transceiving technologies use a plurality of independent program map tables for the left image and the right image in order to display a stereoscopic 3D video.
  • the plurality of program map tables increase the system complexity.
  • the conventional 3D transceiving technologies have the incompatibility problem with a typical digital broadcasting technology that uses one PMT per each channel. Since the conventional 3D transceiving technology has a program specific information (PSI) and transport stream (TS) structure for displaying only 3D video, it further have incompatibility problem to a typical broadcasting system that displays only 2D video.
  • PSI program specific information
  • TS transport stream
  • the information for generating 3D video includes image data of two view
  • 3D video for enabling 3D digital broadcasting while sustaining the backward compatibility with a conventional two dimensional (2D) digital broadcasting system by transmitting a 2D image stream as an normal stream and transmitting 3D supplementary data for 3D broadcasting, for example, image data of other viewpoints, depth information, and disparity information, using a robust stream synchronized with the normal stream based on ATSC E-VSB scheme used in conventional digital broadcasting.
  • 2D image stream as an normal stream
  • 3D supplementary data for 3D broadcasting for example, image data of other viewpoints, depth information, and disparity information
  • a system for transmitting three dimensional (3D) video based on digital broadcasting including: an encoding unit for generating two dimensional (2D) video elementary stream
  • ES and 3D supplementary data ES by independently encoding 2D video and 3D supplementary data
  • a packetizing unit for generating a 2D video packetized ES (PES) and a 3D supplementary PES by independently packetizing the 2D video ES and the 3D supplementary ES generated at the encoding unit
  • PSI program specific information
  • PSI program specific information
  • a transport stream (TS) generating unit for generating a 2D video TS and a 3D supplementary TS for the 2D video PES and the 3D supplementary PES from the packetizing unit and a PSI TS for the PSI generated from the PSI generating unit
  • a multiplexing unit for multiplexing the transport streams from the TS generating unit to transmit the 2D video TS as a normal stream and to transmit the 3D supplementary TS, the PSI TS and a 3D video synch data TS as a robust stream
  • a modulation unit for generating a 2D video packetized ES (PES
  • system for receiving three dimensional (3D) video based on digital broadcasting including: a demodulating unit for receiving a digital broadcasting signal and splitting the received digital broadcasting signal into a normal stream and a robust stream; a demultiplexing unit for extracting a program specific identification (PSI) data and a 3D video synch data from the robust stream, extracting a 2D video TS and a 3D supplementary TS from the normal stream and the robust stream using the extracted PSI data, and outputting the extracted 2D video TS and 3D supplementary TS in forms of a 2D video ES and a 3D supplementary ES; a decoding unit for decoding the 2D video ES and the 3D supplementary ES from the de-multiplexing unit; a 3D video mixing unit for bypassing the decoded 2D video from the decoding unit according to a display type requested by a user, or producing a 3D video by mixing the decoded 2D video and 3D supplementary data from the decoding unit; and a controlling unit for
  • a method for transmitting 3D video based on digital broadcasting including the steps of: a) generating 2D video packetized elementary stream (PES) and 3D supplementary data packetized elementary stream (PES) by independently encoding and packetizing 2D video and 3D supplementary data; b) generating a program specific identification (PSI) representing the 3D supplementary data is transmitted as a robust stream; c) generating a 2D video TS and a 3D supplementary TS for the 2D video PES and the 3D supplementary PES from the step a) and a PSI TS for the PSI generated from the step b); d) multiplexing the transport streams from the step c) to transmit the 2D video TS as a normal stream and to transmit the 3D supplementary TS, the PSI TS and a 3D video synch data TS as a robust stream; and e) modulating the multiplexed TS according to a specification
  • a method for receiving 3D video based on digital broadcasting including the steps of: a) receiving a digital broadcasting signal and splitting the received digital broadcasting signal into a normal stream and a robust stream; b) extracting a program specific identification (PSI) data and a 3D video synch data from the robust stream, extracting a 2D video transport stream (TS) and a 3D supplementary TS from the normal stream and the robust stream using the extracted PSI data, and outputting the extracted 2D video TS and 3D supplementary TS in forms of a 2D video ES and a 3D supplementary ES; c) decoding the 2D video ES and the 3D supplementary ES from the step b); and d) bypassing the decoded 2D video from the step c) according to a display type requested by a user, or generating a 3D video by mixing the decoded 2D video and 3D supplementary data from the step c).
  • PSI program specific identification
  • TS 2D video transport stream
  • a system and method for transmitting/receiving 3D video according to the present invention can minimize difficulties to embody a 3D video broadcasting system and provide the backward compatibility with the typical 2D digital broadcasting system by transmitting 3D supplementary data using additional robust stream based on ATSC E- VSB scheme used in conventional digital broadcasting.
  • the system and method for transmitting/receiving 3D video allows a user having a conventional digital broadcasting receiver to enjoy 2D video broadcasting and also allows a user having a 3D video digital broadcasting receiver to selectively enjoy one of 2D video or 3D video broadcasting.
  • FIG. 1 is a block diagram illustrating a system for transmitting 3D video based on digital broadcasting in accordance with an embodiment of the present invention
  • Fig. 2 is a block diagram illustrating a system for receiving 3D video based on
  • FIG. 1 is a block diagram illustrating a system for transmitting three-dimensional
  • 3D (3D) video based on digital broadcasting in accordance with an embodiment of the present invention.
  • a method for transmitting 3D video according to an embodiment of the present invention will be described with the system for
  • Embodiment includes a 3D AV obtaining unit 10, an encoder 11, a packetizer 12, a program specific information (PSI) generator 13, a transport stream (TS) generator 14, a normal/burst stream multiplexer (Normal/Robust stream MUX) 15, and an E-xVSB modulator 16.
  • PSI program specific information
  • TS transport stream
  • Normal/Robust stream MUX normal/burst stream multiplexer
  • the 3D AV obtaining unit 10 obtains 2D A/V data and 3D supplementary data from
  • the 2D A/V data is left and right audio/video data for 2D broadcasting and the 3D supplementary data denotes supplementary information for 3D broadcasting. That is, the 3D supplementary data is information for reproducing three-dimensional images and includes images of other view points different from that of the 2D image, a disparity map, a disparity map with residual data, and a disparity map with residual texture.
  • the 2D image denotes images for two dimensional broadcasting. The images of other view points may be a right image if the 2D image is a left image, or it may be a left image if the 2D image is a right image.
  • the encoder 11 includes a plurality of encoding units 111 and 112.
  • the encoder 11 independently encodes the AV data and the 3D supplementary data, which are outputted from the 3D AV obtaining unit 10, and generates elementary streams (ES) for each data. That is, the audio data and the 2D video data including one of the left and the right image are encoded by a corresponding one of the encoding units 111 and 112 independently. Also, the 3D supplementary data is encoded by the other independently.
  • the decoders 111 and 112 output the elementary streams.
  • MPEG-2 encoding units may be used as the encoding units 11 land 112, or any widely known encoder having good compression efficiency may be used, for example, MPEG-4 AVC.
  • the packetizer 12 includes a plurality of packetizing units 121 and 122.
  • packetizing units 121 and 122 packetize the 2D AV elementary stream and the 3D supplementary elementary stream outputted from the encoder 11, thereby generating a packetized elementary stream (PES).
  • PES packetized elementary stream
  • the program specific information (PSI) generator 13 generates PSI data that
  • the PSI generator 13 defines a PID value and a PMT for the 3D supplementary ES in order to transmit the 3D supplementary ES as the robust stream.
  • the transport stream (TS) generator 14 includes a plurality of TS generating units
  • the TS generating units 141 to 143 generate transport streams (TS) for the PES outputted from the packetizing units 121 and 122 and the PSI data outputted from the PSI generator 13. That is, the TS generator 14 outputs a 2D AV TS, a 3D supplementary TS and a PSI TS.
  • the 2D AV TS is an audio transport stream and a 2D video transport stream.
  • the Normal/Robust stream MUX 15 multiplexes the 2D AV TS, the 3D supplementary TS and the PSI TS in order to transmit the 2DAV TS through a normal stream, and transmit the 3D supplementary TS, the PSI TS and synch information for mixing a 3D video through a robust stream.
  • the receiver will use the multiplexed 3D supplementary data and synch information for recovering a 3D video.
  • the E-xVSB modulator 16 modulates the multiplexed TS from the Normal/Robust stream MUX 15 according to a digital television (DTV) standard and transmits the modulated TS.
  • DTV digital television
  • FIG. 2 is a block diagram illustrating a system for receiving 3D video based on digital broadcasting in accordance with an embodiment of the present invention.
  • Embodiment includes an E-xVSB demodulator 21, a demultiplexer (DeMux) 22, a controller (control logic part) 23, a decoder 24, a 3D video mixer 25, a 2D/3D video display 26, and a speaker 27.
  • DeMux demultiplexer
  • controller control logic part
  • the E-x VSB demodulator 21 receives a digital broadcasting signal through an
  • the digital broadcasting signal is transmitted based on a dual mode ATSC E-VSB scheme.
  • the E-xVSB demodulator 21 demodulates the received signal and obtains TSs. Then, the E-xVSB demodulator 21 splits the obtained TS into a normal stream and a robust stream.
  • the demultiplexer (DeMux) 22 receives the robust stream from the E-xVSB demodulator 21, extracts the PIS data and the synch information for mixing the 3D video from the robust stream, and splits the normal stream and the robust stream into the 2D video TS and the 3D supplementary TS using the extracted PSI data.
  • the demultiplexer 22 generates PES by analyzing the split TS, and de-packetizes the generated PES, thereby outputting the split TS as an elementary stream.
  • the decoder 24 includes an MPEG-2 decoder 241, a 3D supplementary decoder
  • the MPEG-2 decoder 241 decodes the 2D video ES outputted from the DeMux 22 according to the MPEG-2 specifications and outputs the decoded 2D video ES to the 3D mixer 25.
  • the 3D supplementary decoder 242 decodes the 3D supplementary ES inputted from the DeMux 22 and outputs the decoded 3D supplementary ES to the 3D mixer 25.
  • the audio decoder 243 decodes the audio ES inputted from the DeMux 22 and outputs through the speaker 27.
  • the 3D mixer 25 bypasses 2D video inputted from the decoder 241 or generates a
  • 3D video by mixing the 2D video and the 3D supplementary data inputted from the decoders 241 and 242. Then, the 3D mixer 25 outputs the generated 3D video to the 2D/3D video display 26.
  • the 3D mixer 25 checks a display type inputted from a user. If the display type requested by the user is 2D image display, the 3D mixer 25 ignores the 3D supplementary data and bypasses the original video that is the 2D video transmitted as the normal stream to the 2D/3D video display 26. If the display type requested by the user is 3D image display, the 3D mixer 25 generates the 3D video by mixing the 2D video and the 3D supplementary data, and outputs the generated 3D video to the 2D/3D display 26.
  • the 3D supplementary data formed of odd field images and even field images of the video signal is mixed in a line-by-line manner, thereby outputting SD level 3D video, where the SD level denotes a resolution of 720x480.
  • the SD level denotes a resolution of 720x480.
  • garbage data in the 3D supplementary data is ignored.
  • the resolution of the 3Dvideo may change depending on the display such as a monitor. Therefore, a video signal magnification/ demagnification module may be added in a real display.
  • the controller 23 controls the de-multiplexing operation of the DeMux 22, and
  • the controller 23 controls the 3D video generating operation of the 3D mixer 25 using the synch data extracted at the DeMux 22.
  • the controller 23 synchronizes the 2D video or the 3D video, which are outputted from the 3D mixer 25 to the 2D/3D video display 26 with the audio outputted from the audio decoder 243.
  • the 2D/3D video display 26 receives the 2D video or the 3D video transferred from the 3D video mixer 25, and the speaker 27 reproduces the audio data outputted from the audio decoder 243.
  • the above described method according to the present invention can be embodied as a program and stored on a computer readable recording medium.
  • the computer readable recording medium is any data storage device that can store data which can be thereafter read by the computer system.
  • the computer readable recording medium includes a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a floppy disk, a hard disk and an optical magnetic disk.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

La présente invention concerne un système et un procédé d'émission et réception de vidéo 3D en diffusion numérique. Ce système comporte plusieurs éléments. Un codeur assure la production du train élémentaire 2D et du train élémentaire supplémentaire 3D par codage de données vidéo 2D et de données supplémentaires 3D. Un module de mise en paquets assure la production du train élémentaire en paquets vidéo 2D et du train élémentaire en paquets supplémentaire par mise en paquets du train élémentaire vidéo 2D et du train élémentaire supplémentaire 3D. Un générateur d'information spécifique programme (PSI) assure la génération d'une information spécifique programme. Un générateur de train de transport (TS) assure la génération du train de transport vidéo 2D et du train de transport supplémentaire 3D pour le train élémentaire en paquets vidéo 2D et le train élémentaire en paquets supplémentaire 3D. Un multiplexeur assure le multiplexage des trains de transport pour la transmission du train de transport vidéo 2D sous forme d'un train normal et pour la transmission du train de transport supplémentaire 3D, du train de transport d'information spécifique programme et du train de transport de données de synchronisation vidéo 3D sous forme d'un train monobloc. Enfin, un modulateur assure la modulation du train de transport multiplexé selon une norme de télévision numérique et la transmission du train de transport modulé.
PCT/KR2006/005379 2005-12-09 2006-12-11 Systeme et procede d'emission/reception de video tridimensionnelle en diffusion numerique WO2007067020A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/096,198 US8483269B2 (en) 2005-12-09 2006-12-11 System and method for transmitting/receiving three dimensional video based on digital broadcasting
US13/913,811 US9380288B2 (en) 2005-12-09 2013-06-10 System and method for transmitting/receiving three dimensional video based on digital broadcasting

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2005-0120700 2005-12-09
KR20050120700 2005-12-09
KR1020060069959A KR100747598B1 (ko) 2005-12-09 2006-07-25 디지털방송 기반의 3차원 입체영상 송수신 시스템 및 그방법
KR10-2006-0069959 2006-07-25

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US13/913,811 Continuation US9380288B2 (en) 2005-12-09 2013-06-10 System and method for transmitting/receiving three dimensional video based on digital broadcasting

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EP2343907A2 (fr) * 2008-10-10 2011-07-13 LG Electronics Inc. Système de réception et méthode de traitement de données
EP2360930A1 (fr) * 2008-12-18 2011-08-24 LG Electronics Inc. Procédé pour le traitement de signal d'image en trois dimensions et écran d'affichage d'image pour la mise en uvre du procédé
US8089507B2 (en) * 2008-09-30 2012-01-03 Panasonic Corporation Recording medium, playback device, system LSI, playback method, glasses, and display device for 3D images
EP2409494A2 (fr) * 2009-03-19 2012-01-25 LG Electronics Inc. Procédé de traitement d'un signal vidéo en trois dimensions (3d) et récepteur numérique multidiffusion conçu pour mettre en uvre le procédé de traitement
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CN102640504A (zh) * 2009-11-13 2012-08-15 三星电子株式会社 产生用于调整3维附加视频再现信息的深度的多媒体流的方法和设备,以及接收用于调整3维附加视频再现信息的多媒体流的深度的方法和设备
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EP2528333A2 (fr) * 2010-01-18 2012-11-28 LG Electronics Inc. Récepteur de signaux de diffusion et procédé de traitement de données vidéo
CN103119948A (zh) * 2010-09-19 2013-05-22 Lg电子株式会社 用于处理针对3d(三维)广播业务的广播信号的方法和装置
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US8089507B2 (en) * 2008-09-30 2012-01-03 Panasonic Corporation Recording medium, playback device, system LSI, playback method, glasses, and display device for 3D images
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US9712803B2 (en) 2008-10-10 2017-07-18 Lg Electronics Inc. Receiving system and method of processing data
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US9762888B2 (en) 2008-10-10 2017-09-12 Lg Electronics Inc. Receiving system and method of processing data
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EP2360930A1 (fr) * 2008-12-18 2011-08-24 LG Electronics Inc. Procédé pour le traitement de signal d'image en trois dimensions et écran d'affichage d'image pour la mise en uvre du procédé
EP2360930A4 (fr) * 2008-12-18 2015-03-25 Lg Electronics Inc Procédé pour le traitement de signal d'image en trois dimensions et écran d'affichage d'image pour la mise en uvre du procédé
EP2384585A4 (fr) * 2009-02-01 2017-03-15 LG Electronics Inc. Récepteur de diffusion et procédé de traitement de données vidéo 3d
US9756309B2 (en) 2009-02-01 2017-09-05 Lg Electronics Inc. Broadcast receiver and 3D video data processing method
EP2409494A2 (fr) * 2009-03-19 2012-01-25 LG Electronics Inc. Procédé de traitement d'un signal vidéo en trois dimensions (3d) et récepteur numérique multidiffusion conçu pour mettre en uvre le procédé de traitement
US9491434B2 (en) 2009-03-19 2016-11-08 Lg Electronics Inc. Method for processing three dimensional (3D) video signal and digital broadcast receiver for performing the method
US9215446B2 (en) 2009-03-19 2015-12-15 Lg Electronics Inc. Method for processing three dimensional (3D) video signal and digital broadcast receiver for performing the method
EP2409494A4 (fr) * 2009-03-19 2013-05-15 Lg Electronics Inc Procédé de traitement d'un signal vidéo en trois dimensions (3d) et récepteur numérique multidiffusion conçu pour mettre en uvre le procédé de traitement
US8854428B2 (en) 2009-03-19 2014-10-07 Lg Electronics, Inc. Method for processing three dimensional (3D) video signal and digital broadcast receiver for performing the method
US20120019619A1 (en) * 2009-04-07 2012-01-26 Jong Yeul Suh Broadcast transmitter, broadcast receiver, and 3d video data processing method thereof
US9762885B2 (en) 2009-04-07 2017-09-12 Lg Electronics Inc. Broadcast transmitter, broadcast receiver and 3D video data processing method thereof
KR20120013974A (ko) * 2009-04-07 2012-02-15 엘지전자 주식회사 방송 송신기, 방송 수신기 및 3d 비디오 데이터 처리 방법
WO2010117129A3 (fr) * 2009-04-07 2010-12-23 Lg Electronics Inc. Emetteur de diffusion, récepteur de diffusion et procédé de traitement de données vidéo 3d de ces émetteur et récepteur
US9041772B2 (en) 2009-04-07 2015-05-26 Lg Electronics Inc. Broadcast transmitter, broadcast receiver, and 3D video data processing method thereof
US9756311B2 (en) 2009-04-07 2017-09-05 Lg Electronics Inc. Broadcast transmitter, broadcast receiver and 3D video data processing method thereof
US10129525B2 (en) 2009-04-07 2018-11-13 Lg Electronics Inc. Broadcast transmitter, broadcast receiver and 3D video data processing method thereof
WO2010117129A2 (fr) * 2009-04-07 2010-10-14 Lg Electronics Inc. Emetteur de diffusion, récepteur de diffusion et procédé de traitement de données vidéo 3d de ces émetteur et récepteur
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