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1. 发明授权

US07583730B2 Drifting reduction and macroblock-based control in progressive fine granularity scalable video coding 有权
公开(公告)号：US07583730B2
公开(公告)日：2009-09-01
申请号：US11070905
申请日：2005-03-03
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
IPC分类号： H04N7/12
CPC分类号： H04N19/34 , H04N19/51
摘要： A motion-compensated video encoding scheme employs progressive fine-granularity layered coding to encode macroblocks of video data into frames having multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video. Some of the enhancement layers in a current frame are predicted from different quality layers in reference frames. The video encoding scheme estimates drifting errors during the encoding and chooses a coding mode for each macroblock in the enhancement layer to maximize high coding efficiency while minimizing drifting errors.

2. 发明授权

US08005138B2 Seamless switching of scalable video bitstreams 有权
标题翻译：可扩展视频比特流的无缝切换
公开(公告)号：US08005138B2
公开(公告)日：2011-08-23
申请号：US11280095
申请日：2005-11-16
申请人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
IPC分类号： H04N7/12 , H04B1/66
CPC分类号： G06T9/00 , H04N21/234327 , H04N21/2402 , H04N21/2662
摘要： A seamless bitstream switching schema is presented. The schema takes advantage of both the high coding efficiency of non-scalable bitstreams and the flexibility of scalable bitstreams. Small bandwidth fluctuations are accommodated by the scalability of the bitstreams, while large bandwidth fluctuations are tolerated by switching among scalable bitstreams. This seamless bitstream switching schema significantly improves the efficiency of scalable video coding over a broad range of bit rates.
摘要翻译：提出了一种无缝比特流切换模式。该模式利用了非可分级比特流的高编码效率和可扩展比特流的灵活性。通过比特流的可扩展性来适应小的带宽波动，而通过在可缩放比特流之间切换来允许大的带宽波动。这种无缝比特流切换架构显着提高了可扩展视频编码在广泛比特率下的效率。

3. 发明授权

US06996173B2 Seamless switching of scalable video bitstreams 有权
标题翻译：可扩展视频比特流的无缝切换
公开(公告)号：US06996173B2
公开(公告)日：2006-02-07
申请号：US10186298
申请日：2002-06-27
申请人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
IPC分类号： H04N7/12
CPC分类号： G06T9/00 , H04N21/234327 , H04N21/2402 , H04N21/2662
摘要： A seamless bitstream switching schema is presented. The schema takes advantage of both the high coding efficiency of non-scalable bitstreams and the flexibility of scalable bitstreams. Small bandwidth fluctuations are accommodated by the scalability of the bitstreams, while large bandwidth fluctuations are tolerated by switching among scalable bitstreams. This seamless bitstream switching schema is significantly improves the efficiency of scalable video coding over a broad range of bit rates.
摘要翻译：提出了无缝比特流切换模式。该模式利用了非可分级比特流的高编码效率和可扩展比特流的灵活性。通过比特流的可扩展性来适应小的带宽波动，而通过在可缩放比特流之间切换来允许大的带宽波动。这种无缝比特流切换模式显着地提高了广泛的比特率的可扩展视频编码的效率。

4. 发明申请

US20050147164A1 Drifting reduction and macroblock-based control in progressive fine granularity scalable video coding 有权
标题翻译：渐进精细粒度可扩展视频编码中的漂移减少和基于宏块的控制
公开(公告)号：US20050147164A1
公开(公告)日：2005-07-07
申请号：US11070905
申请日：2005-03-03
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
IPC分类号： H04N7/26 , H04N7/12
CPC分类号： H04N19/34 , H04N19/51
摘要： A motion-compensated video encoding scheme employs progressive fine-granularity layered coding to encode macroblocks of video data into frames having multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video. Some of the enhancement layers in a current frame are predicted from different quality layers in reference frames. The video encoding scheme estimates drifting errors during the encoding and chooses a coding mode for each macroblock in the enhancement layer to maximize high coding efficiency while minimizing drifting errors.
摘要翻译：运动补偿视频编码方案采用逐行细粒度分层编码将视频数据的宏块编码为具有多层的帧，包括具有越来越高质量视频的相对低质量视频的基本层和多个增强层。当前帧中的一些增强层从参考帧中的不同质量层预测。视频编码方案估计编码期间的漂移误差，并且为增强层中的每个宏块选择编码模式以最大化编码效率，同时最小化漂移误差。

5. 发明申请

US20060067402A1 Seamless switching of scalable video bitstreams 有权
公开(公告)号：US20060067402A1
公开(公告)日：2006-03-30
申请号：US11280619
申请日：2005-11-16
申请人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
IPC分类号： H04N7/12 , H04B1/66 , H04N11/02 , H04N11/04
CPC分类号： G06T9/00 , H04N21/234327 , H04N21/2402 , H04N21/2662
摘要： A seamless bitstream switching schema is presented. The schema takes advantage of both the high coding efficiency of non-scalable bitstreams and the flexibility of scalable bitstreams. Small bandwidth fluctuations are accommodated by the scalability of the bitstreams, while large bandwidth fluctuations are tolerated by switching among scalable bitstreams. This seamless bitstream switching schema significantly improves the efficiency of scalable video coding over a broad range of bit rates.

6. 发明申请

US20060067401A1 Seamless switching of scalable video bitstreams 有权
标题翻译：可扩展视频比特流的无缝切换
公开(公告)号：US20060067401A1
公开(公告)日：2006-03-30
申请号：US11280095
申请日：2005-11-16
申请人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
IPC分类号： H04N11/04 , H04N7/12 , H04B1/66 , H04N11/02
CPC分类号： G06T9/00 , H04N21/234327 , H04N21/2402 , H04N21/2662
摘要： A seamless bitstream switching schema is presented. The schema takes advantage of both the high coding efficiency of non-scalable bitstreams and the flexibility of scalable bitstreams. Small bandwidth fluctuations are accommodated by the scalability of the bitstreams, while large bandwidth fluctuations are tolerated by switching among scalable bitstreams. This seamless bitstream switching schema significantly improves the efficiency of scalable video coding over a broad range of bit rates.
摘要翻译：提出了无缝比特流切换模式。该模式利用了非可分级比特流的高编码效率和可扩展比特流的灵活性。通过比特流的可扩展性来适应小的带宽波动，而通过在可缩放比特流之间切换来允许大的带宽波动。这种无缝比特流切换架构显着提高了可扩展视频编码在广泛比特率下的效率。

7. 发明授权

US06907070B2 Drifting reduction and macroblock-based control in progressive fine granularity scalable video coding 有权
公开(公告)号：US06907070B2
公开(公告)日：2005-06-14
申请号：US10007074
申请日：2001-11-08
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
IPC分类号： H04N7/26 , H04N7/12 , H04N11/02
CPC分类号： H04N19/34 , H04N19/51
摘要： A motion-compensated video encoding scheme employs progressive fine-granularity layered coding to encode macroblocks of video data into frames having multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video. Some of the enhancement layers in a current frame are predicted from different quality layers in reference frames. The video encoding scheme estimates drifting errors during the encoding and chooses a coding mode for each macroblock in the enhancement layer to maximize high coding efficiency while minimizing drifting errors.

8. 发明授权

US07830958B2 Seamless switching of scalable video bitstreams 有权
标题翻译：可扩展视频比特流的无缝切换
公开(公告)号：US07830958B2
公开(公告)日：2010-11-09
申请号：US11280619
申请日：2005-11-16
申请人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Xiaoyan Sun , Ya-Qin Zhang
IPC分类号： H04N7/12
CPC分类号： G06T9/00 , H04N21/234327 , H04N21/2402 , H04N21/2662
摘要： A seamless bitstream switching schema is presented. The schema takes advantage of both the high coding efficiency of non-scalable bitstreams and the flexibility of scalable bitstreams. Small bandwidth fluctuations are accommodated by the scalability of the bitstreams, while large bandwidth fluctuations are tolerated by switching among scalable bitstreams. This seamless bitstream switching schema significantly improves the efficiency of scalable video coding over a broad range of bit rates.
摘要翻译：提出了无缝比特流切换模式。该模式利用了非可分级比特流的高编码效率和可扩展比特流的灵活性。通过比特流的可扩展性来适应小的带宽波动，而通过在可缩放比特流之间切换来允许大的带宽波动。这种无缝比特流切换架构显着提高了可扩展视频编码在广泛比特率下的效率。

9. 发明授权

US07664185B2 Systems and methods with error resilience in enhancement layer bitstream of scalable video coding 失效
标题翻译：在可扩展视频编码的增强层比特流中具有错误弹性的系统和方法
公开(公告)号：US07664185B2
公开(公告)日：2010-02-16
申请号：US10978277
申请日：2004-10-29
申请人： Ya-Qin Zhang , Shipeng Li , Feng Wu , Rong Yan
发明人： Ya-Qin Zhang , Shipeng Li , Feng Wu , Rong Yan
IPC分类号： H04N7/18
CPC分类号： H04N19/29 , H04N19/34 , H04N19/68 , H04N19/89
摘要： A scalable layered video coding scheme that encodes video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video, adds error resilience to the enhancement layer. Unique resynchronization marks are inserted into the enhancement layer bitstream in headers associated with each video packet, headers associated with each bit plane, and headers associated with each video-of-plane (VOP) segment. Following transmission of the enhancement layer bitstream, the decoder tries to detect errors in the packets. Upon detection, the decoder seeks forward in the bitstream for the next known resynchronization mark. Once this mark is found, the decoder is able to begin decoding the next video packet. With the addition of many resynchronization marks within each frame, the decoder can recover very quickly and with minimal data loss in the event of a packet loss or channel error in the received enhancement layer bitstream. The video coding scheme also facilitates redundant encoding of header information from the higher-level VOP header down into lower level bit plane headers and video packet headers. Header extension codes are added to the bit plane and video packet headers to identify whether the redundant data is included.
摘要翻译：将视频数据帧编码成多层的可分级的分层视频编码方案，包括具有越来越高质量视频的较低质量视频和多个增强层的基本层，向增强层增加了错误恢复能力。将独特的再同步标记插入到与每个视频分组相关联的报头中的增强层比特流中，与每个位平面相关联的报头以及与每个视频平面（VOP）段相关联的报头。在传输增强层比特流之后，解码器尝试检测分组中的错误。在检测到时，解码器在比特流中向前寻找下一个已知的再同步标记。一旦找到该标记，解码器就可以开始对下一个视频数据包进行解码。通过在每个帧内添加许多重新同步标记，解码器可以在接收到的增强层比特流中的分组丢失或信道错误的情况下非常快速地恢复并且具有最小的数据丢失。视频编码方案还有助于将标题信息从较高级别的VOP头部冗余编码到较低级位平面头部和视频分组头部。标题扩展码被添加到位平面和视频分组报头，以标识是否包括冗余数据。

10. 发明授权

US07684495B2 Systems and methods with error resilience in enhancement layer bitstream of scalable video coding 失效
公开(公告)号：US07684495B2
公开(公告)日：2010-03-23
申请号：US10977590
申请日：2004-10-29
申请人： Ya-Qin Zhang , Shipeng Li , Feng Wu , Rong Yan
发明人： Ya-Qin Zhang , Shipeng Li , Feng Wu , Rong Yan
IPC分类号： H04N7/18
CPC分类号： H04N19/29 , H04N19/34 , H04N19/68 , H04N19/89
摘要： A scalable layered video coding scheme that encodes video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video, adds error resilience to the enhancement layer. Unique resynchronization marks are inserted into the enhancement layer bitstream in headers associated with each video packet, headers associated with each bit plane, and headers associated with each video-of-plane (VOP) segment. Following transmission of the enhancement layer bitstream, the decoder tries to detect errors in the packets. Upon detection, the decoder seeks forward in the bitstream for the next known resynchronization mark. Once this mark is found, the decoder is able to begin decoding the next video packet. With the addition of many resynchronization marks within each frame, the decoder can recover very quickly and with minimal data loss in the event of a packet loss or channel error in the received enhancement layer bitstream. The video coding scheme also facilitates redundant encoding of header information from the higher-level VOP header down into lower level bit plane headers and video packet headers. Header extension codes are added to the bit plane and video packet headers to identify whether the redundant data is included.

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