WO2007064159A1 - Procede de fourniture de service de contenus 3d base sur la diffusion numerique - Google Patents

Procede de fourniture de service de contenus 3d base sur la diffusion numerique Download PDF

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Publication number
WO2007064159A1
WO2007064159A1 PCT/KR2006/005128 KR2006005128W WO2007064159A1 WO 2007064159 A1 WO2007064159 A1 WO 2007064159A1 KR 2006005128 W KR2006005128 W KR 2006005128W WO 2007064159 A1 WO2007064159 A1 WO 2007064159A1
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WO
WIPO (PCT)
Prior art keywords
contents
information
descriptor
broadcasting
media stream
Prior art date
Application number
PCT/KR2006/005128
Other languages
English (en)
Inventor
Kug-Jin Yun
Nam-Ho Hur
Soo-In Lee
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
Application filed by Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to EP06823836A priority Critical patent/EP1955554A4/fr
Publication of WO2007064159A1 publication Critical patent/WO2007064159A1/fr

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Classifications

    • 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
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/42615—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific demultiplexing arrangements
    • 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
    • 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
    • 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
    • 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
    • H04N21/23614—Multiplexing of additional data and video streams
    • 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
    • H04N21/2365—Multiplexing of several video streams
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • 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
    • H04N21/4348—Demultiplexing of additional data and video streams
    • 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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division

Definitions

  • the present invention relates to a method for providing three-dimensional (3D) contents service based on digital broadcasting; and, more particularly, a method for providing a 3D contents service based on digital broadcasting to provide realistic 3D contents by suggesting a formation and information of a Program Map Table (PMT) to provide a stereoscopic 3D moving picture service used for a 3D stereophonic broadcasting service.
  • PMT Program Map Table
  • the reference 1 discloses a method and apparatus for transmitting/receiving a stereophonic image in a digital broadcasting.
  • the reference 1 is a method including the steps of additionally transmitting Packet Identification (PID) for classifying left and right image signals with respect to a stereoscopic 3D moving picture as well as PID for classifying video/ audio information and additional information in MPEG-2 Transport Stream (TS), separating information on the left and right image added to the video information in a receiving part, recovering an image based on two decoders and displaying a 3D moving picture.
  • PID Packet Identification
  • TS MPEG-2 Transport Stream
  • the technology of the reference 1 can display only the 3D moving picture, it has a limitation in the method of recognizing the stereoscopic 3D moving picture in a 3D reception terminal in compatibility with an existing system.
  • KR Patent Publication No. 1989-0015620 discloses a stereophonic television broadcasting method and a stereophonic television receiver.
  • KR Patent Publication No. 1995-0010662 discloses a method for processing a signal of a stereophonic image and transmitting/receiving stereophonic broadcasting.
  • KR Patent No. 1993-0006188 discloses a circuit for processing a stereophonic video image signal for stereophonic television broadcasting.
  • the references 2, 3 and 4 relate to a method for transmitting left and right image signals through two channels to provide a stereophonic broadcasting service and additionally transmitting PID for separating the left and right image signals from program data showing a stereophonic image.
  • KR Patent Publication No. 2000-0057398 discloses a digital broadcasting system.
  • the reference 5 relates to a method for reorganizing the left and right images up and down or left and right to transmit the left and right images through one channel, and compressing and multiplexing the left and right images according to a conventional broadcasting method.
  • the stereoscopic 3D moving picture is used in diverse application fields due to development of a computer and a communication technology. Also, since the stereoscopic 3D moving picture is more realistic and stereophonic in comparison with a typical 2D moving picture, diverse services can be provided to the user. However, the stereoscopic 3D moving picture has a limit in a stereoscopic 3D moving picture process in digital broadcasting such as a quantity of 3D moving picture data, synchronization, and compatibility with the typical system.
  • an object of the present invention to provide a method for providing three-dimensional (3D) contents service based on digital broadcasting by using a Program Map Table (PMT) formation for recognizing two-dimensional (2D) or 3D contents and displaying a stereoscopic 3D moving picture with maintaining compatibility with a digital broadcasting system, a 2D/3D display mode and interaction of user-centered depth control.
  • PMT Program Map Table
  • a method for providing a three-dimensional (3D) contents service based on digital broadcasting including the steps of: a) extracting Program Association Table (PAT) information on Packet Identification (PID) pre-set up for a stereophonic broadcasting service from a Transport Stream (TS); b) acquiring Program Map Table (PMT) PID from the extracted PAT; c) analyzing version_number and Contents_type_descriptor based on the acquired PMT information and dividing typical broadcasting contents and 3D broadcasting contents; d) extracting the PID for each media stream formed for a reference image and a 3D additional information broadcasting service based on the PMT information; e) extracting a corresponding media stream in the Transport Stream based on a PID value for the extracted media stream and transmitting the media stream to a corresponding decoder; and f) recovering an image of the transmitted media stream in the decoder and displaying the media stream.
  • PAT Program Association Table
  • PMT Program Map Table
  • the present invention can provide realistic three-dimensional (3D) broadcasting to a user by providing and using a Program Map Table (PMT) formation for a realistic 3D contents service while maintaining compatibility with digital broadcasting.
  • PMT Program Map Table
  • Fig. 1 shows a Program Map Table (PMT) for providing a three-dimensional (3D) contents service based on digital broadcasting in accordance with an embodiment of the present invention
  • Fig. 2 shows a Transport Stream (TS) packet in accordance with an embodiment of the present invention.
  • FIG. 3 is a flowchart describing a method for providing the 3D contents service based on the digital broadcasting in accordance with an embodiment of the present invention.
  • PSI Program Specific Information
  • 3D three-dimensional
  • CAT Conditional Access Table
  • the PAT and the PMT relate to program information included in the program and the NIT relates to a regulation value.
  • the CAT relates to scrambling when conditional access is required.
  • the present invention suggests the PSI information through the PAT and the PMT for a stereophonic broadcasting service. That is, the NIT and the CAT are not mentioned in the present invention.
  • the PAT and the PMT transmit information on which PID is included in a certain packet and the PID shows packet ID in a TS packet header.
  • the PID is used to divide the packet in the Transport Stream inputted in a receiving part. That is, the system decoder starts a service for the program from the PAT information.
  • Table 1 is a type of 3D additional information.
  • a reference image is allocated as left and right images and a type to be considered as the 3D additional information is shown.
  • the present invention allocates and describes the 3D additional information as the additional video, i.e., the vertically half image as an embodiment. That is, the reference image and the allocated 3D additional information are decoded in the receiving part, synthesized and outputted according to characteristics of each monitor from a 3D scene creator. A function of the scene creator is changed according to the type of the 3D additional information. Also, the 3D additional information type is used as 3D_additional_information_type in the inside of 3D_information_descriptor to be described hereinafter.
  • Fig. 1 shows the PMT for providing the 3D contents service based on digital broadcasting in accordance with an embodiment of the present invention.
  • Fig. 1 uses the PAT without change in conformity to a MPEG-2 standard.
  • the PMT includes a method for dividing typical broadcasting contents and 3D contents, and a method for describing 3D additional information.
  • a user can recognize information on the typical broadcasting and the 3D broadcasting through a Program System Information Protocol (PSIP).
  • PSIP Program System Information Protocol
  • a 3D reception terminal does not figure out the type of the actually transmitted contents.
  • the present invention uses a version_number 101 and a Contents_type_descriptor 102 in the inside of the PMT to divide the typical broadcasting contents and the 3D contents in a channel.
  • the Contents_type_descriptor 102 includes information below.
  • Descriptor_length 8bits future information length
  • the Contents_type_descriptor 102 includes a Descriptor_tag for showing a contents type descriptor, a Descriptor_length for showing a length of future information and a Contents_Format for dividing contents.
  • the Contents_Format can be extended with respect to the typical broadcasting contents and diverse 3D contents.
  • the Contents_type_descriptor 102 maintains compatibility with a conventional digital broadcasting set-top by setting up a tag value as User Private and is located in a right after Program_info_length 104.
  • an MPEG-2 stream type used to a digital broadcasting service is used without change in a reference image 130.
  • 3D additional information 120 uses an Advanced Video Coding (AVC) stream type.
  • AVC Advanced Video Coding
  • the stream type of the 3D additional information 120 can be changed according to the type of the used CODEC. Accordingly, since the conventional digital broadcasting set-top does not recognize the stream of the 3D additional information 120, 3D contents are provided as 2D contents.
  • Descriptor_length 8bits future information length
  • 3D_additional_information_type 3D additional information type
  • Min 4bits minimum disparity size
  • the 3D_information_descriptor 121 includes a kind of the type of the used 3D additional information 120 and the minimum-maximum value of the disparity value of the image acquired by taking a photograph by a stereophonic camera.
  • the 3D reception terminal performs interaction such as 3D scene creation and depth control of the user.
  • the 3D_additional_information_type describes a type defined in Table 1.
  • the 3D_disparity_information includes a maximum/minimum disparity value of the stereoscopic 3D moving picture and a value of the 3D_disparity_information is automatically changed according to movement of the future stereophonic camera.
  • Table 2 shows an embodiment of the PMT formation for servicing the 3D contents based on the above-mentioned contents.
  • the 3D broadcasting reception terminal recognizes and services the typical broadcasting contents and the 3D contents while maintaining compatibility with the conventional digital broadcasting system.
  • the 3D broadcasting reception terminal maintains typical channel setup and compatibility with the broadcasting by setting up a program based on the PMT.
  • FIG. 2 shows a TS packet in accordance with an embodiment of the present invention.
  • Fig. 2 shows a formation of a multiplexed TS packet of the reference image and the 3D additional information stream organized according to the PID of the PMT.
  • Fig. 3 is a flowchart describing a method for providing the 3D contents service based on the digital broadcasting in accordance with an embodiment of the present invention and it shows a procedure for processing a reception terminal for the 3D broadcasting service.
  • Each decoder recovers an image and a 3D image creating unit creates a 3D moving picture based on the 3D monitor characteristics.
  • the user can watch the created 3D moving picture as the 2D or 3D moving picture at step S307.
  • One image of the left and right images is processed and displayed as the 2D image at step S309.
  • the left and right images are simultaneously processed and displayed as a 3D moving picture based on the characteristics of the monitor at step S308.
  • the 3D image creating unit controls depth as wanted in a regular range based on the 3D_disparity_information provided from the 3D_information_descriptor through the interface of the user, the user can watch the 3D moving picture in an optimal distance.
  • the technology of the present invention can be realized as a program and stored in a computer-readable recording medium, such as CD-ROM, RAM, ROM, floppy disk, hard disk and magneto-optical disk. Since the process can be easily implemented by those skilled in the art, further description will not be provided herein.

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

Abstract

L'invention concerne un procédé de fourniture de service de contenus tridimensionnels (3D) basé sur la diffusion numérique. Le procédé comprend les étapes consistant: a) à extraire des informations de table d'association des programmes (PAT) relatives à une identification de paquets (PID); b) à acquérir une PID de table de correspondance des programmes (PMT) à partir de la PAT extraite; c) à analyser un numéro de version et un descripteur du type de contenus et à diviser des contenus de diffusion générale et des contenus de diffusion 3D; d) à extraire la PID pour chaque flux multimédia formé pour une image de référence et un service de diffusion d'informations supplémentaires 3D; e) à extraire un flux multimédia correspondant dans le flux de transport et à transmettre le flux multimédia vers un décodeur correspondant; et f) à récupérer une image du flux multimédia transmis dans le décodeur et à afficher le flux multimédia.
PCT/KR2006/005128 2005-12-02 2006-11-30 Procede de fourniture de service de contenus 3d base sur la diffusion numerique WO2007064159A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06823836A EP1955554A4 (fr) 2005-12-02 2006-11-30 Procede de fourniture de service de contenus 3d base sur la diffusion numerique

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20050116999 2005-12-02
KR10-2005-0116999 2005-12-02
KR10-2006-0083138 2006-08-30
KR1020060083138A KR100818933B1 (ko) 2005-12-02 2006-08-30 디지털방송 기반 ３차원 컨텐츠 서비스 제공 방법

Publications (1)

Publication Number Publication Date
WO2007064159A1 true WO2007064159A1 (fr) 2007-06-07

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Country Status (3)

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EP (1) EP1955554A4 (fr)
KR (1) KR100818933B1 (fr)
WO (1) WO2007064159A1 (fr)

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EP1955554A1 (fr) 2008-08-13
KR20070058302A (ko) 2007-06-08
KR100818933B1 (ko) 2008-04-04
EP1955554A4 (fr) 2009-12-23

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