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1. 发明申请

WO2008088305A3 VIDEO DATA LOSS RECOVERY USING LOW BIT RATE STREAM IN AN IPTV SYSTEM 审中-公开
标题翻译：在IPTV系统中使用低比特率流恢复视频数据丢失
公开(公告)号：WO2008088305A3
公开(公告)日：2008-10-16
申请号：PCT/US2006048632
申请日：2006-12-20
申请人： THOMSON RES FUNDING CORP , DAI JIWANG , LI JOHN QIANG , STEIN ALAN JAY
发明人： DAI JIWANG , LI JOHN QIANG , STEIN ALAN JAY
IPC分类号： H04N7/66 , H04N21/236 , H04N19/89 , H04N21/2381 , H04N21/431
CPC分类号： H04N21/23418 , H04N19/159 , H04N19/172 , H04N19/37 , H04N19/61 , H04N21/23439 , H04N21/2365 , H04N21/4384 , H04N21/440263 , H04N21/6405 , H04N21/64322
摘要： A system and method for recovering from data loss are described including monitoring a first bit rate video data bit stream to determine if there is frame loss or damage, multiplexing decoding parameters of a second bit rate video data bit stream, the second bit rate video data bit stream and the first bit rate video data bit stream, if there is frame loss or damage, demultiplexing the first bit rate video data bit stream and the second bit rate video data bit stream, decoding the first bit rate video data bit stream, removing damaged frames from the first bit rate video data bit stream, decoding the second bit rate video data bit stream, up-sampling frames from said processed second bit rate video data bit stream if said processed second bit rate video data bit stream has a lower resolution than said processed first bit rate video data bit stream and merging frames from the second bit rate video data bit stream and the first bit rate video data bit stream.
摘要翻译：描述了一种用于从数据丢失中恢复的系统和方法，包括监视第一比特率视频数据比特流以确定是否存在帧丢失或损坏，复用第二比特率视频数据比特流的解码参数，第二比特率视频数据如果存在帧丢失或损坏，则将第一比特率视频数据比特流和第一比特率视频数据比特流解复用，解复用第一比特率视频数据比特流和第二比特率视频数据比特流，解码第一比特率视频数据比特流，去除如果所述经处理的第二比特率视频数据比特流具有较低分辨率，则从所述第一比特率视频数据比特流中解码所述第二比特率视频数据比特流，解码所述第二比特率视频数据比特流，比所述经处理的第一比特率视频数据比特流和来自所述第二比特率视频数据比特流和所述第一比特率视频数据比特流的帧合并。

2. 发明申请

WO2008088305A2 VIDEO DATA LOSS RECOVERY USING LOW BIT RATE STREAM IN AN IPTV SYSTEM 审中-公开
标题翻译：在IPTV系统中使用低比特率流的视频数据丢失恢复
公开(公告)号：WO2008088305A2
公开(公告)日：2008-07-24
申请号：PCT/US2006/048632
申请日：2006-12-20
申请人： THOMSON RESEARCH FUNDING CORPORATION , DAI, Jiwang , LI, John, Qiang , STEIN, Alan, Jay
发明人： DAI, Jiwang , LI, John, Qiang , STEIN, Alan, Jay
IPC分类号： H04N7/24
CPC分类号： H04N21/23418 , H04N19/159 , H04N19/172 , H04N19/37 , H04N19/61 , H04N21/23439 , H04N21/2365 , H04N21/4384 , H04N21/440263 , H04N21/6405 , H04N21/64322
摘要： A system and method for recovering from data loss are described including monitoring a first bit rate video data bit stream to determine if there is frame loss or damage, multiplexing decoding parameters of a second bit rate video data bit stream, the second bit rate video data bit stream and the first bit rate video data bit stream, if there is frame loss or damage, demultiplexing the first bit rate video data bit stream and the second bit rate video data bit stream, decoding the first bit rate video data bit stream, removing damaged frames from the first bit rate video data bit stream, decoding the second bit rate video data bit stream, up-sampling frames from said processed second bit rate video data bit stream if said processed second bit rate video data bit stream has a lower resolution than said processed first bit rate video data bit stream and merging frames from the second bit rate video data bit stream and the first bit rate video data bit stream.
摘要翻译：描述了从数据丢失恢复的系统和方法，包括监视第一比特率视频数据比特流以确定是否存在帧丢失或损坏，复用第二比特率视频数据比特流的解码参数，第二比特率视频数据比特流和第一比特率视频数据比特流，如果存在帧丢失或损坏，解复用第一比特率视频数据比特流和第二比特率视频数据比特流，对第一比特率视频数据比特流进行解码，去除来自第一比特率视频数据比特流的损坏帧，对第二比特率视频数据比特流进行解码，如果所述处理的第二比特率视频数据比特流具有较低的分辨率，则从所述处理的第二比特率视频数据比特流向上采样帧比所述处理的第一比特率视频数据比特流和来自第二比特率视频数据比特流和第一比特率视频数据比特流的合并帧。

3. 发明申请

WO2010008416A1 A SCALABLE VIDEO CODING METHOD FOR FAST CHANNEL CHANGE TO INCREASE CODING EFFICIENCY 审中-公开
标题翻译：用于快速通道更改以提高编码效率的可扩展视频编码方法
公开(公告)号：WO2010008416A1
公开(公告)日：2010-01-21
申请号：PCT/US2009/000325
申请日：2009-01-16
申请人： THOMSON LICENSING , LU, Xiuping , WU, Zhenyu , LI, John Qiang
发明人： LU, Xiuping , WU, Zhenyu , LI, John Qiang
IPC分类号： H04N7/26
CPC分类号： H04N21/4384 , H04N19/30 , H04N19/65 , H04N19/68 , H04N19/89 , H04N21/234327 , H04N21/2362 , H04N21/4383
摘要： An apparatus encodes a video signal for providing a scalable video coded (SVC) signal comprising a base layer video coded signal and an enhancement layer video coded signal, wherein the base layer video coded signal has more random access points, e.g., Instantaneous Decoder Refresh (IDR) slices, than the enhancement layer and in those access units where the enhancement layer has an IDR slice, the base layer has a non-IDR slice.
摘要翻译：一种装置对视频信号进行编码，以提供包括基本层视频编码信号和增强层视频编码信号的可分级视频编码信号（SVC），其中基本层视频编码信号具有更多的随机接入点，例如瞬时解码器刷新（ IDR）切片，并且在增强层具有IDR切片的那些访问单元中，基层具有非IDR切片。

4. 发明申请

WO2009154704A1 METHODS AND APPARATUS FOR SPLITTING AND COMBINING SCALABLE VIDEO CODING TRANSPORT STREAMS 审中-公开
标题翻译：分割和组合可扩展视频编码传输流的方法和装置
公开(公告)号：WO2009154704A1
公开(公告)日：2009-12-23
申请号：PCT/US2009/003487
申请日：2009-06-10
申请人： THOMSON LICENSING , LI, John, Qiang , LU, Xiuping , ANTHRU, Shemimon, Manalikudy
发明人： LI, John, Qiang , LU, Xiuping , ANTHRU, Shemimon, Manalikudy
IPC分类号： H04N7/24
CPC分类号： H04N21/6437 , H04N21/234327 , H04N21/2381 , H04N21/4621 , H04N21/631 , H04N21/64792 , H04N21/8451
摘要： In the transport of Scalable Video Coding (SVC) video, base and enhancement layers are split into individual transport streams which can be used to provide differing levels of resolution for different users. A simple device can use only the base layer, whereas devices with greater resources can have the base layer stream and one or more of the enhancement layer streams combined to provide greater resolution. By thus splitting an SVC stream into different transport streams, differentiated quality of service and network traffic engineering is facilitated. A system incorporating SVC splitting and combining facilities as described can allow users with different capabilities to share the same encoding and transport infrastructure while receiving differentiated service and quality.
摘要翻译：在可扩展视频编码（SVC）视频的传输中，基础和增强层被分成单独的传输流，其可以用于为不同的用户提供不同的分辨率水平。简单的设备只能使用基本层，而具有更大资源的设备可以具有基本层流，并且一个或多个增强层流被组合以提供更高的分辨率。通过将SVC流分解成不同的传输流，便于区分服务质量和网络流量工程。包含所描述的SVC拆分和组合设施的系统可以允许具有不同能力的用户在接收差异化服务和质量的同时共享相同的编码和传输基础设施。

5. 发明申请

WO2010014210A1 A METHOD AND APPARATUS FOR FAST CHANNEL CHANGE USING A SECONDARY CHANNEL VIDEO STREAM 审中-公开
标题翻译：使用二次通道视频流进行快速通道更改的方法和装置
公开(公告)号：WO2010014210A1
公开(公告)日：2010-02-04
申请号：PCT/US2009/004359
申请日：2009-07-28
申请人： THOMSON LICENSING , LI, John, Qiang , LU, Xiuping , WU, Zhenyu
发明人： LI, John, Qiang , LU, Xiuping , WU, Zhenyu
IPC分类号： H04N5/45 , H04N5/50 , H04N7/173
CPC分类号： H04N5/50 , H04N5/45 , H04N21/23439 , H04N21/4316 , H04N21/4384
摘要： A method and apparatus for fast channel change when changing the channel from a channel being viewed full screen as a main picture to a channel being viewed in a secondary channel program display window (e.g., a picture-in-picture (PIP) window). In one implementation, during the channel change, a secondary video stream (135) for a secondary channel program is up-sampled and displayed full screen while receiving the corresponding regular video stream (133) for the video program, of which program contents are identical to those of the secondary video stream. The program contents of the up-sampled secondary video stream is then be replaced seamlessly with those of the corresponding regular video stream (133) at the time when an instantaneous decode refresh (IDR) frame of the corresponding regular video stream (133) is received. In another implementation, the last GOP packets of the corresponding regular video stream (133), corresponding to a secondary video stream (135) being viewed in the secondary channel program display window, are buffered without being decoded. Upon a request for the channel change, the buffered GOP packets are decoded and displayed immediately while the decoder starts receiving the following frames in the corresponding regular video stream (133).
摘要翻译：一种用于在从作为主图像全屏观看的频道改变频道到在次频道节目显示窗口（例如，画中画（PIP）窗口）中观看的频道的频道改变时的方法和装置。在一个实现中，在频道改变期间，用于辅助频道节目的辅助视频流（135）被上采样并全屏显示，同时接收用于视频节目的对应的常规视频流（133），其中节目内容是相同的到次要视频流的那些。然后，当接收到对应的常规视频流（133）的瞬时解码刷新（IDR）帧时，上采样次视频流的节目内容与相应的常规视频流（133）的节目内容无缝地替换。在另一个实施方式中，在辅助频道节目显示窗口中观看的对应于次要视频流（135）的相应常规视频流（133）的最后GOP分组被缓存，而不被解码。当要求频道改变时，缓冲的GOP分组被解码并立即显示，同时解码器开始在相应的常规视频流（133）中接收下列帧。

6. 发明申请

WO2010011295A1 METHODS FOR ERROR CONCEALMENT DUE TO ENHANCEMENT LAYER PACKET LOSS IN SCALABLE VIDEO CODING (SVC) DECODING 审中-公开
标题翻译：由于可扩展视频编码（SVC）解码中的增强层分组丢失导致的错误隐藏方法
公开(公告)号：WO2010011295A1
公开(公告)日：2010-01-28
申请号：PCT/US2009/004233
申请日：2009-07-21
申请人： THOMSON LICENSING , LI, John, Qiang , WU, Zhenyu , LU, Xiuping
发明人： LI, John, Qiang , WU, Zhenyu , LU, Xiuping
IPC分类号： H04N7/12
CPC分类号： H04N19/00321 , H04N19/177 , H04N19/187 , H04N19/33 , H04N19/59 , H04N19/895
摘要： Methods for concealing Scalable Video Coding (SVC) decoding errors. Lost pictures in the target layer are replaced with up-sampled pictures from a lower layer, such as the base layer. In multiloop decoding applications, lost pictures in the target layer are replaced with corresponding up-sampled pictures from the lower layer. Subsequent target layer pictures in the same Group of Pictures (GOP) are either replaced with corresponding upsampled pictures from the lower layer, or they are decoded with up-sampled pictures from the lower layer used as reference pictures. For single-loop decoding, the bit stream of each layer is buffered, for each GOP, and inspected for errors. If an error is detected in the target layer, the pictures of the highest level layer without an error are decoded and up-sampled and used as the output pictures for the current GOP.
摘要翻译：隐藏可缩放视频编码（SVC）解码错误的方法。目标层中丢失的图像将被从较低层（例如基础层）的上采样图像所取代。在多循环解码应用中，目标层中的丢失图像将被来自下层的相应的上采样图像所取代。相同图像组（GOP）中的后续目标图像图像将被来自较低层的相应的上采样图像替换，或者用来自用作参考图像的较低层的上采样图像进行解码。对于单循环解码，每个层的比特流对于每个GOP进行缓冲，并检查错误。如果在目标层中检测到错误，则无错误的最高级别图层的图像被解码并上采样并用作当前GOP的输出图像。

7. 发明申请

WO2008013883A3 METHOD AND APPARATUS FOR FAST CHANNEL CHANGE FOR DIGITAL VIDEO 审中-公开
标题翻译：用于数字视频的快速频道改变的方法和设备
公开(公告)号：WO2008013883A3
公开(公告)日：2008-03-13
申请号：PCT/US2007016788
申请日：2007-07-25
申请人： THOMSON RES FUNDING CORP , STEIN ALAN JAY , DAI JIWANG , LI JOHN QIANG , LU XIUPING
发明人： STEIN ALAN JAY , DAI JIWANG , LI JOHN QIANG , LU XIUPING
IPC分类号： H04N7/24
CPC分类号： H04N21/4347 , H04N21/23424 , H04N21/2365 , H04N21/2662 , H04N21/4305 , H04N21/4307 , H04N21/434 , H04N21/4383 , H04N21/4384 , H04N21/44016
摘要： There are provided methods and apparatus for fast channel change for digital video. An apparatus includes at least one encoder (805, 810) for receiving normal video data and channel change video data and encoding the normal video data and the channel change video data in a normal video stream and a channel change video stream, respectively, using a common system clock to provide synchronization between the normal video stream and the channel change video stream. The normal video stream and the channel change video stream are encoded for transport separately at a transport level.
摘要翻译：提供了用于数字视频的快速频道改变的方法和设备。一种装置包括：至少一个编码器（805,810），用于接收正常视频数据和频道改变视频数据，并且分别使用正常视频流和频道改变视频流对正常视频数据和频道改变视频数据进行编码共同的系统时钟，以提供正常视频流和频道改变视频流之间的同步。正常视频流和频道改变视频流被编码以在传输级单独传输。

8. 发明申请

WO2010014123A1 A REAL-TIME TRANSPORT PROTOCOL (RTP) PACKETIZATION METHOD FOR FAST CHANNEL CHANGE APPLICATIONS USING SCALABLE VIDEO CODING (SVC) 审中-公开
标题翻译：使用可扩展视频编码（SVC）的快速通道更改应用的实时传输协议（RTP）封装方法
公开(公告)号：WO2010014123A1
公开(公告)日：2010-02-04
申请号：PCT/US2009/000574
申请日：2009-01-29
申请人： THOMSON LICENSING , LU, Xiuping , WU, Zhenyu , LI, John, Qiang
发明人： LU, Xiuping , WU, Zhenyu , LI, John, Qiang
IPC分类号： H04N7/24 , H04N7/50
CPC分类号： H04L65/608 , H04N19/107 , H04N19/187 , H04N19/33 , H04N19/61 , H04N21/23424 , H04N21/234327 , H04N21/2381 , H04N21/2383 , H04N21/4384 , H04N21/44016 , H04N21/440227 , H04N21/6437
摘要： An apparatus encodes a video signal for providing a scalable video coded (SVC) signal comprising a base layer video coded signal and an enhancement layer video coded signal, wherein the base layer video coded signal has more random access points, e.g., Instantaneous Decoder Refresh (IDR) slices, than the enhancement layer and in those access units where the enhancement layer has an IDR slice, the base layer has a non-IDR slice. Transmission of the SVC occurs in packet form using the Real-time Transport Protocol (RTP) such that non-random access point slices are conveyed in Simple Time Aggregation Packets (STAP), each Simple Time Aggregation Packet comprising a Payload Content Scalability Information (PACSI) Network Abstraction Layer (NAL) Unit.
摘要翻译：一种装置对视频信号进行编码，以提供包括基本层视频编码信号和增强层视频编码信号的可分级视频编码信号（SVC），其中基本层视频编码信号具有更多的随机接入点，例如瞬时解码器刷新（ IDR）切片，并且在增强层具有IDR切片的那些访问单元中，基层具有非IDR切片。 SVC的传输以分组形式使用实时传输协议（RTP）发生，使得非随机接入点片段在简单时间聚合分组（STAP）中传送，每个简单时间聚合分组包括有效载荷内容可扩展性信息（PACSI ）网络抽象层（NAL）单元。

9. 发明申请

WO2008013883A2 METHOD AND APPARATUS FOR FAST CHANNEL CHANGE FOR DIGITAL VIDEO 审中-公开
标题翻译：用于数字视频的快速通道更改的方法和装置
公开(公告)号：WO2008013883A2
公开(公告)日：2008-01-31
申请号：PCT/US2007/016788
申请日：2007-07-25
申请人： THOMSON RESEARCH FUNDING CORPORATION , STEIN, Alan, Jay , DAI, Jiwang , LI, John, Qiang , LU, Xiuping
发明人： STEIN, Alan, Jay , DAI, Jiwang , LI, John, Qiang , LU, Xiuping
IPC分类号： H04N5/50
CPC分类号： H04N21/4347 , H04N21/23424 , H04N21/2365 , H04N21/2662 , H04N21/4305 , H04N21/4307 , H04N21/434 , H04N21/4383 , H04N21/4384 , H04N21/44016
摘要： There are provided methods and apparatus for fast channel change for digital video. An apparatus includes at least one encoder (805, 810) for receiving normal video data and channel change video data and encoding the normal video data and the channel change video data in a normal video stream and a channel change video stream, respectively, using a common system clock to provide synchronization between the normal video stream and the channel change video stream. The normal video stream and the channel change video stream are encoded for transport separately at a transport level.
摘要翻译：提供了用于数字视频快速通道改变的方法和装置。一种装置包括至少一个编码器（805,810），用于分别在正常视频流和频道改变视频流中分别接收普通视频数据和频道改变视频数据，并对普通视频数据和频道改变视频数据进行编码，公共系统时钟，以提供正常视频流与频道改变视频流之间的同步。正常视频流和频道改变视频流在传输层分别被编码用于传输。

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