JP2009508454A - スケーラブルなビデオ符号化を用いたスケーラブルで低遅延のテレビ会議用システムおよび方法 - Google Patents

スケーラブルなビデオ符号化を用いたスケーラブルで低遅延のテレビ会議用システムおよび方法 Download PDF

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JP2009508454A
JP2009508454A JP2008544319A JP2008544319A JP2009508454A JP 2009508454 A JP2009508454 A JP 2009508454A JP 2008544319 A JP2008544319 A JP 2008544319A JP 2008544319 A JP2008544319 A JP 2008544319A JP 2009508454 A JP2009508454 A JP 2009508454A
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layer
enhancement layer
base layer
picture
video
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シヴァンラール,レハ
エレフゼリアディス,アレクサンドロス
ホン,ダニー
シャピロ,オファー
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ヴィドヨ,インコーポレーテッド
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/14Systems for two-way working
    • H04N7/141Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/164Feedback from the receiver or from the transmission channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/31Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the temporal domain
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/36Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] scalability
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/37Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability with arrangements for assigning different transmission priorities to video input data or to video coded data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/478Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4788Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/631Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64746Control signals issued by the network directed to the server or the client
    • H04N21/64753Control signals issued by the network directed to the server or the client directed to the client
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64784Data processing by the network
    • H04N21/64792Controlling the complexity of the content stream, e.g. by dropping packets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/14Systems for two-way working
    • H04N7/15Conference systems

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP2008544319A 2005-09-07 2006-07-21 スケーラブルなビデオ符号化を用いたスケーラブルで低遅延のテレビ会議用システムおよび方法 Pending JP2009508454A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US71474105P 2005-09-07 2005-09-07
US72339205P 2005-10-04 2005-10-04
PCT/US2006/028365 WO2008060262A1 (en) 2005-09-07 2006-07-21 System and method for scalable and low-delay videoconferencing using scalable video coding

Related Child Applications (1)

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JP2013030527A Division JP2013141284A (ja) 2005-09-07 2013-02-20 スケーラブルなビデオ符号化を用いたスケーラブルで低遅延のテレビ会議用システムおよび方法

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JP2013030527A Pending JP2013141284A (ja) 2005-09-07 2013-02-20 スケーラブルなビデオ符号化を用いたスケーラブルで低遅延のテレビ会議用システムおよび方法

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EP (1) EP1952631A4 (de)
JP (2) JP2009508454A (de)
WO (1) WO2008060262A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011101157A (ja) * 2009-11-05 2011-05-19 Mega Chips Corp 画像生成方法および画像再生方法
JP2012134874A (ja) * 2010-12-22 2012-07-12 Ricoh Co Ltd Tv会議システム
JP2013531934A (ja) * 2010-05-25 2013-08-08 ヴィディオ・インコーポレーテッド 複数のカメラおよび複数のモニタを使用する拡張可能なビデオ通信用のシステムおよび方法
JP2013153419A (ja) * 2011-12-27 2013-08-08 Ricoh Co Ltd 通信管理システム、通信システム、プログラム、及びメンテナンスシステム
JP2013538511A (ja) * 2010-08-26 2013-10-10 フリースケール セミコンダクター インコーポレイテッド ビデオ処理システムおよびビデオデータの並列処理のための方法
JP2013251903A (ja) * 2012-06-01 2013-12-12 Samsung Electronics Co Ltd 多階層ビデオコーディングのためのレート制御方法、これを用いるビデオエンコード装置及びビデオ信号処理システム
JP2015192230A (ja) * 2014-03-27 2015-11-02 沖電気工業株式会社 会議システム、会議サーバ、会議方法及び会議プログラム
US9210375B2 (en) 2010-02-24 2015-12-08 Ricoh Company, Limited Transmission system and transmitting method
JP2016005139A (ja) * 2014-06-17 2016-01-12 株式会社リコー 通信装置、通信システム、通信制御方法およびプログラム
JP2016195449A (ja) * 2012-08-27 2016-11-17 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
JP2018029338A (ja) * 2016-08-16 2018-02-22 Line株式会社 ビデオカンファレンスのためのビデオストリーム提供方法およびコンピュータプログラム

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006081454A2 (en) 2005-01-26 2006-08-03 Internet Broadcasting Corporation Layered multicast and fair bandwidth allocation and packet prioritization
EP3070922A1 (de) 2005-12-08 2016-09-21 Vidyo, Inc. Systeme und verfahren für fehlerrobustheit und direktzugriff in videokommunikationssystemen
EP2360843A3 (de) 2006-02-16 2013-04-03 Vidyo, Inc. System und Verfahren zur Verdünnung von skalierbaren videokodierenden Bitströmen
US8320450B2 (en) 2006-03-29 2012-11-27 Vidyo, Inc. System and method for transcoding between scalable and non-scalable video codecs
CN101588252B (zh) 2008-05-23 2011-07-20 华为技术有限公司 一种多点会议的控制方法及装置
WO2009154704A1 (en) * 2008-06-17 2009-12-23 Thomson Licensing Methods and apparatus for splitting and combining scalable video coding transport streams
US8319820B2 (en) * 2008-06-23 2012-11-27 Radvision, Ltd. Systems, methods, and media for providing cascaded multi-point video conferencing units
CA2740467C (en) 2008-10-22 2013-08-20 Nippon Telegraph And Telephone Corporation Scalable video encoding method and scalable video encoding apparatus
US10063873B2 (en) 2010-03-25 2018-08-28 Mediatek Inc. Method for adaptively performing video decoding, and associated adaptive complexity video decoder and adaptive audio/video playback system
US9172980B2 (en) 2010-03-25 2015-10-27 Mediatek Inc. Method for adaptively performing video decoding, and associated adaptive complexity video decoder and adaptive audio/video playback system
US8259808B2 (en) * 2010-03-25 2012-09-04 Mediatek Inc. Low complexity video decoder
EP2804374A1 (de) 2013-02-22 2014-11-19 Thomson Licensing Codierungs- und Decodierungsverfahren eines Bildblocks, zugehörige Vorrichtungen und Datenstrom
EP2804375A1 (de) 2013-02-22 2014-11-19 Thomson Licensing Codierungs- und Decodierungsverfahren eines Bildblocks, zugehörige Vorrichtungen und Datenstrom
CN110177273B (zh) 2013-03-21 2023-06-02 索尼公司 图像编码装置和方法
JP6588801B2 (ja) * 2015-10-30 2019-10-09 キヤノン株式会社 画像処理装置、画像処理方法、及び、プログラム
CN115720257B (zh) * 2022-10-13 2023-06-23 华能信息技术有限公司 一种视频会议系统的通信安全管理方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09116903A (ja) * 1995-10-16 1997-05-02 Nippon Telegr & Teleph Corp <Ntt> 階層化符号化装置および階層化復号化装置
WO2004040917A1 (en) * 2002-10-30 2004-05-13 Koninklijke Philips Electronics N.V. Coded video packet structure, demultiplexer, merger, method and apparaturs for data partitioning for robust video transmission
WO2004043071A1 (en) * 2002-11-06 2004-05-21 Nokia Corporation Picture buffering for prediction references and display
WO2004098196A1 (en) * 2003-04-30 2004-11-11 Nokia Corporation Picture coding method
JP2005516498A (ja) * 2002-01-23 2005-06-02 ノキア コーポレイション ビデオ符号化における画像フレームのグループ化

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000295608A (ja) * 1999-04-06 2000-10-20 Matsushita Electric Ind Co Ltd 映像信号階層符号化伝送装置、映像信号階層復号化受信装置およびプログラム記録媒体
EP1520431B1 (de) * 2002-07-01 2018-12-26 E G Technology Inc. Wirksame kompression und transport von video über ein netzwerk
US20040252758A1 (en) * 2002-08-14 2004-12-16 Ioannis Katsavounidis Systems and methods for adaptively filtering discrete cosine transform (DCT) coefficients in a video encoder
EP1445958A1 (de) * 2003-02-05 2004-08-11 STMicroelectronics S.r.l. Quanitizierungsverfahren und System zum Beispiel für MPEG-Applikationen und Computerprogramm dafür
JP2005167962A (ja) * 2003-11-11 2005-06-23 Secom Co Ltd 符号化信号分離装置、符号化信号合成装置および符号化信号分離合成システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09116903A (ja) * 1995-10-16 1997-05-02 Nippon Telegr & Teleph Corp <Ntt> 階層化符号化装置および階層化復号化装置
JP2005516498A (ja) * 2002-01-23 2005-06-02 ノキア コーポレイション ビデオ符号化における画像フレームのグループ化
WO2004040917A1 (en) * 2002-10-30 2004-05-13 Koninklijke Philips Electronics N.V. Coded video packet structure, demultiplexer, merger, method and apparaturs for data partitioning for robust video transmission
WO2004043071A1 (en) * 2002-11-06 2004-05-21 Nokia Corporation Picture buffering for prediction references and display
WO2004098196A1 (en) * 2003-04-30 2004-11-11 Nokia Corporation Picture coding method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
秦泉寺他: "MPEG−4 ASP/FGS CODECを用いた多地点スケーラブル通信会議システム", 電子情報通信学会技術研究報告 VOL.104 NO.752, vol. 104, no. 752, JPN6011033062, 18 March 2005 (2005-03-18), JP, pages 55 - 60, ISSN: 0001949180 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011101157A (ja) * 2009-11-05 2011-05-19 Mega Chips Corp 画像生成方法および画像再生方法
US9210375B2 (en) 2010-02-24 2015-12-08 Ricoh Company, Limited Transmission system and transmitting method
JP2013531934A (ja) * 2010-05-25 2013-08-08 ヴィディオ・インコーポレーテッド 複数のカメラおよび複数のモニタを使用する拡張可能なビデオ通信用のシステムおよび方法
JP2013538511A (ja) * 2010-08-26 2013-10-10 フリースケール セミコンダクター インコーポレイテッド ビデオ処理システムおよびビデオデータの並列処理のための方法
JP2012134874A (ja) * 2010-12-22 2012-07-12 Ricoh Co Ltd Tv会議システム
JP2013153419A (ja) * 2011-12-27 2013-08-08 Ricoh Co Ltd 通信管理システム、通信システム、プログラム、及びメンテナンスシステム
JP2013251903A (ja) * 2012-06-01 2013-12-12 Samsung Electronics Co Ltd 多階層ビデオコーディングのためのレート制御方法、これを用いるビデオエンコード装置及びビデオ信号処理システム
JP2016195449A (ja) * 2012-08-27 2016-11-17 ソニー株式会社 送信装置、送信方法、受信装置および受信方法
JP2015192230A (ja) * 2014-03-27 2015-11-02 沖電気工業株式会社 会議システム、会議サーバ、会議方法及び会議プログラム
JP2016005139A (ja) * 2014-06-17 2016-01-12 株式会社リコー 通信装置、通信システム、通信制御方法およびプログラム
JP2018029338A (ja) * 2016-08-16 2018-02-22 Line株式会社 ビデオカンファレンスのためのビデオストリーム提供方法およびコンピュータプログラム

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EP1952631A4 (de) 2012-11-21
WO2008060262A1 (en) 2008-05-22
JP2013141284A (ja) 2013-07-18

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