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1. 发明授权

US08315306B2 Distributed joint source-channel coding of video using raptor codes 有权
标题翻译：使用猛禽码分布式联合源视频编码
公开(公告)号：US08315306B2
公开(公告)日：2012-11-20
申请号：US11517942
申请日：2006-09-08
申请人： Qian Xu , Vladimir M. Stanković , Zixiang Xiong
发明人： Qian Xu , Vladimir M. Stanković , Zixiang Xiong
IPC分类号： H04N7/12
CPC分类号： H04N19/395 , H03M13/03 , H03M13/11 , H04N19/36 , H04N19/89
摘要： A video encoder system includes a base layer and an enhancement layer for encoding video data. The base layer encodes a reduced quality version of the video data to obtain base layer data. The enhancement layer encodes the video data using energy-concentrating transform operations, nested scalar quantization, and Raptor encoders. The base layer data and enhancement layer data are transmitted through a channel to a video decoder system. The decoder system decodes the base layer data to recover an estimate of the reduced quality video and decodes the enhancement layer data (using the reduced quality video as side information) to obtain blocks of coset indices. The decoder system then operates on the blocks of coset indices to generate estimates of the original video data.
摘要翻译：视频编码器系统包括用于编码视频数据的基本层和增强层。基层对视频数据的降低质量版本进行编码以获得基本层数据。增强层使用能量集中变换操作，嵌套标量量化和猛禽编码器编码视频数据。基层数据和增强层数据通过一个信道发送到视频解码器系统。解码器系统对基本层数据进行解码以恢复降低质量视频的估计，并且将增强层数据（使用缩减质量视频作为辅助信息）解码以获得陪集索引块。然后，解码器系统对陪集索引的块进行操作以产生原始视频数据的估计。

2. 发明授权

US07912147B2 Compress-forward coding with N-PSK modulation for the half-duplex Gaussian relay channel 失效
标题翻译：用于半双工高斯中继信道的具有N-PSK调制的压缩前向编码
公开(公告)号：US07912147B2
公开(公告)日：2011-03-22
申请号：US11686019
申请日：2007-03-14
申请人： Zhixin Liu , Vladimir M. Stanković , Zixiang Xiong
发明人： Zhixin Liu , Vladimir M. Stanković , Zixiang Xiong
IPC分类号： H04L27/00
CPC分类号： H04L27/183 , H03M7/30 , H03M13/1102 , H03M13/1197 , H03M13/3746 , H03M13/6306 , H03M13/6312 , H03M13/658 , H04L1/0041 , H04L1/005 , H04L1/0057 , H04L27/186 , H04L27/2053 , H04L2001/0097
摘要： Systems and methods that implement compress-forward (CF) coding with N-PSK modulation for the relay channel are disclosed, where N is greater than or equal to two. In the CF scheme, Wyner-Ziv coding is applied at the relay to exploit the joint statistics between signals at the relay and the destination. Quantizer design and selection of channel code parameters are discussed. Low-density parity check (LDPC) codes are used for error protection at the source, and nested scalar quantization (NSQ) and irregular repeat accumulate (IRA) codes for Wyner Ziv coding (or more precisely, distributed joint source-channel coding) at the relay. The destination system decodes original message information using (a) a first signal received from the source in a first interval and (b) a second signal that represents a mixture of transmissions from the source and relay in the second interval.
摘要翻译：公开了通过用于中继信道的N-PSK调制实现压缩前向（CF）编码的系统和方法，其中N大于或等于2。在CF方案中，Wyner-Ziv编码适用于继电器，以利用继电器和目的地之间的信号之间的联合统计。讨论量化器设计和选择通道代码参数。低密度奇偶校验（LDPC）码用于源处的错误保护，嵌套标量量化（NSQ）和不规则重复累加（IRA）码用于Wyner-Ziv编码（或更准确地说，分布式联合源信道编码）在继电器。目的地系统使用（a）在第一间隔中从源接收的第一信号和（b）表示在第二间隔中来自源和继电器的传输的混合的第二信号来解码原始消息信息。

3. 发明授权

US08020082B2 Source-channel approach to channel coding with side information 有权
标题翻译：信道编码与信息源的信道方法
公开(公告)号：US08020082B2
公开(公告)日：2011-09-13
申请号：US11684427
申请日：2007-03-09
申请人： Yong Sun , Angelos D. Liveris , Vladimir M. Stanković , Zixiang Xiong
发明人： Yong Sun , Angelos D. Liveris , Vladimir M. Stanković , Zixiang Xiong
IPC分类号： G06F11/00
CPC分类号： H03M13/1194 , H03M7/40 , H03M13/31
摘要： Code designs for channel coding with side information (CCSI) based on combined source-channel coding are disclosed. These code designs combine trellis-coded quantization (TCQ) with irregular repeat accumulate (IRA) codes. The EXIT chart technique is used for IRA channel code design (and especially for capacity-approaching IRA channel code design). We emphasize the role of strong source coding and endeavor to achieve as much granular gain as possible by using TCQ. These code designs synergistically combine TCQ with IRA codes. By bringing together TCQ and EXIT chart-based IRA code designs, we are able to approach the theoretical limit of dirty-paper coding.
摘要翻译：公开了基于组合源信道编码的具有侧信息（CCSI）的信道编码的码设计。这些代码设计将网格编码量化（TCQ）与不规则重复累加（IRA）代码相结合。 EXIT图表技术用于IRA通道代码设计（特别是对于容量接近的IRA通道代码设计）。我们强调强源代码的作用，努力通过使用TCQ实现尽可能多的粒度增益。这些代码设计将TCQ与IRA代码相结合。通过汇总TCQ和EXIT图表的IRA代码设计，我们可以接近脏纸编码的理论限制。

4. 发明申请

US20080069242A1 Distributed joint source-channel coding of video using raptor codes 有权
标题翻译：使用猛禽码分布式联合源视频编码
公开(公告)号：US20080069242A1
公开(公告)日：2008-03-20
申请号：US11517942
申请日：2006-09-08
申请人： Qian Xu , Vladimir M. Stankovic , Zixiang Xiong
发明人： Qian Xu , Vladimir M. Stankovic , Zixiang Xiong
IPC分类号： H04N7/26
CPC分类号： H04N19/395 , H03M13/03 , H03M13/11 , H04N19/36 , H04N19/89
摘要： A video encoder system includes a base layer and an enhancement layer for encoding video data. The base layer encodes a reduced quality version of the video data to obtain base layer data. The enhancement layer encodes the video data using energy-concentrating transform operations, nested scalar quantization, and Raptor encoders. The base layer data and enhancement layer data are transmitted through a channel to a video decoder system. The decoder system decodes the base layer data to recover an estimate of the reduced quality video and decodes the enhancement layer data (using the reduced quality video as side information) to obtain blocks of coset indices. The decoder system then operates on the blocks of coset indices to generate estimates of the original video data.
摘要翻译：视频编码器系统包括用于编码视频数据的基本层和增强层。基层对视频数据的降低质量版本进行编码以获得基本层数据。增强层使用能量集中变换操作，嵌套标量量化和猛禽编码器编码视频数据。基层数据和增强层数据通过一个信道发送到视频解码器系统。解码器系统对基本层数据进行解码以恢复降低质量视频的估计，并且将增强层数据（使用缩减质量视频作为辅助信息）解码以获得陪集索引块。然后，解码器系统对陪集索引的块进行操作以产生原始视频数据的估计。

5. 发明授权

US08073052B1 Layered Wyner-Ziv video coding for transmission over unreliable channels 有权
标题翻译：分层Wyner-Ziv视频编码，用于传输不可靠的频道
公开(公告)号：US08073052B1
公开(公告)日：2011-12-06
申请号：US11494678
申请日：2006-07-27
申请人： Qian Xu , Vladimir M. Stankovic , Zixiang Xiong
发明人： Qian Xu , Vladimir M. Stankovic , Zixiang Xiong
IPC分类号： H04N7/12
CPC分类号： H03M7/30 , H03M13/1197 , H03M13/6312
摘要： A system and method for video coding. Energy-concentrating transform operations are performed on video data to obtain transformed data. Nested scalar quantization is performed on the transformed data to generate blocks of coset indices. Bit planes of the blocks of coset indices are encoded using irregular repeat accumulate (IRA) encoders to generate corresponding bit streams. The bit streams are transmitted to a destination device over a channel. A decoder of the destination device receives input data, corresponding to transmitted bit streams, from the channel. The input data is decoded, using side information, to obtain estimates for the blocks of coset indices. Output video data (i.e., an estimate of the original video data) is generated using the estimated blocks of coset indices and the side information.
摘要翻译：一种用于视频编码的系统和方法。对视频数据执行能量集中变换操作以获得变换数据。对变换后的数据执行嵌套标量量化，生成集合索引块。使用不规则重复累积（IRA）编码器对陪集索引块的位平面进行编码，以生成相应的比特流。比特流通过信道被发送到目的地设备。目的地设备的解码器从信道接收对应于发送的比特流的输入数据。使用边信息对输入数据进行解码，以获得对陪集索引块的估计。使用估计的陪集索引块和侧面信息来生成输出视频数据（即，原始视频数据的估计）。

6. 发明申请

US20070013561A1 Signal coding 审中-公开
标题翻译：信号编码
公开(公告)号：US20070013561A1
公开(公告)日：2007-01-18
申请号：US11336637
申请日：2006-01-20
申请人： Qian Xu , Zixiang Xiong
发明人： Qian Xu , Zixiang Xiong
IPC分类号： H03M7/00
CPC分类号： H03M7/30 , H04N19/132 , H04N19/147 , H04N19/184 , H04N19/34 , H04N19/36 , H04N19/395 , H04N19/46 , H04N19/89
摘要： Embodiments of techniques for signal coding are disclosed
摘要翻译：公开了用于信号编码的技术的实施例

7. 发明授权

US08207874B2 Wyner-Ziv coding based on TCQ and LDPC codes 有权
标题翻译：基于TCQ和LDPC码的Wyner-Ziv编码
公开(公告)号：US08207874B2
公开(公告)日：2012-06-26
申请号：US12185545
申请日：2008-08-04
申请人： Yang Yang , Zixiang Xiong
发明人： Yang Yang , Zixiang Xiong
IPC分类号： H03M7/00
CPC分类号： H03M7/30 , H03M7/3082 , H03M13/1102 , H03M13/6312
摘要： An encoder employs a trellis coded quantization (TCQ) unit and a compression unit. The TCQ uses a set of polynomials that have been selected to maximize granular gain. The TCQ unit operates on a block of samples from a source. The compression unit compresses bit planes of the TCQ output, using parity check matrices of corresponding LDPC codes, to obtain corresponding syndromes. The parity check matrices are selected so their compression performance approaches close to the limit for Slepian-Wolf coding. A decoder employs a decoding unit and an estimation unit. The decoding unit decodes the syndromes using side information to produce an estimate for the TCQ output. The side information is correlated with the source. The estimation unit estimates the block of source samples using the estimated TCQ output and the side information. Trellis coded vector quantization may be used as an alternative to TCQ.
摘要翻译：编码器采用网格编码量化（TCQ）单元和压缩单元。 TCQ使用一组已经选择的多项式来最大化粒度增益。 TCQ单元对来自源的样本块进行操作。压缩单元使用相应LDPC码的奇偶校验矩阵来压缩TCQ输出的比特平面，以获得相应的校验子。选择奇偶校验矩阵，使其压缩性能接近Slepian-Wolf编码的极限。解码器采用解码单元和估计单元。解码单元使用边信息解码校正子，以产生TCQ输出的估计。侧面信息与源相关。估计单元使用估计的TCQ输出和侧面信息来估计源样本块。网格编码矢量量化可以用作TCQ的替代。

8. 发明授权

US07779326B2 Multi-source data encoding, transmission and decoding using Slepian-Wolf codes based on channel code partitioning 有权
标题翻译：使用基于通道码分割的Slepian-Wolf码进行多源数据编码，传输和解码
公开(公告)号：US07779326B2
公开(公告)日：2010-08-17
申请号：US11069935
申请日：2005-03-01
申请人： Vladimir M. Stankovic , Angelos D. Liveris , Zixiang Xiong , Costas N. Georghiades
发明人： Vladimir M. Stankovic , Angelos D. Liveris , Zixiang Xiong , Costas N. Georghiades
IPC分类号： H03M13/00
CPC分类号： H03M7/30 , H03M13/1102 , H03M13/1111 , H03M13/1194 , H03M13/2957 , H03M13/6312
摘要： System and method for designing Slepian-Wolf codes by channel code partitioning. A generator matrix is partitioned to generate a plurality of sub-matrices corresponding respectively to a plurality of correlated data sources. The partitioning is performed in accordance with a rate allocation among the plurality of correlated data sources. A corresponding plurality of parity matrices are generated based respectively on the sub-matrices, where each parity matrix is useable to encode data from a respective one of the correlated data sources.
摘要翻译：通过频道码分割设计Slepian-Wolf码的系统和方法。分割生成矩阵以生成分别对应于多个相关数据源的多个子矩阵。根据多个相关数据源之间的速率分配来执行划分。分别基于子矩阵生成对应的多个奇偶校验矩阵，其中每个奇偶校验矩阵可用于对相关数据源中的相应数据源的数据进行编码。

9. 发明申请

US20090232242A1 Nested Turbo Code Design for the Costa Problem 审中-公开
标题翻译：科斯塔问题的嵌套Turbo码设计
公开(公告)号：US20090232242A1
公开(公告)日：2009-09-17
申请号：US12241004
申请日：2008-09-29
申请人： Zixiang Xiong , Yong Sun , Momin Uppal , Angelos Liveris , Szeming Cheng , Vladimir Stankovic
发明人： Zixiang Xiong , Yong Sun , Momin Uppal , Angelos Liveris , Szeming Cheng , Vladimir Stankovic
IPC分类号： H04L5/12
CPC分类号： H04L1/0066 , H04L1/0041 , H04L1/006
摘要： A method for the Costa problem includes turbo-like nested code. In one embodiment, the method includes providing a turbo-like trellis-coded quantization for source coding. The method also includes providing a turbo trellis-coded modulation for channel coding.
摘要翻译：科斯塔问题的一种方法包括涡轮增压嵌套代码。在一个实施例中，该方法包括为源编码提供涡轮状网格编码量化。该方法还包括为信道编码提供turbo网格编码调制。

10. 发明申请

US20090031191A1 Wyner-Ziv Coding Based on TCQ and LDPC Codes 有权
标题翻译：基于TCQ和LDPC码的Wyner-Ziv编码
公开(公告)号：US20090031191A1
公开(公告)日：2009-01-29
申请号：US12185545
申请日：2008-08-04
申请人： Yang Yang , Zixiang Xiong
发明人： Yang Yang , Zixiang Xiong
IPC分类号： H03M13/00 , G06F11/00
CPC分类号： H03M7/30 , H03M7/3082 , H03M13/1102 , H03M13/6312
摘要： An encoder employs a trellis coded quantization (TCQ) unit and a compression unit. The TCQ uses a set of polynomials that have been selected to maximize granular gain. The TCQ unit operates on a block of samples from a source. The compression unit compresses bit planes of the TCQ output, using parity check matrices of corresponding LDPC codes, to obtain corresponding syndromes. The parity check matrices are selected so their compression performance approaches close to the limit for Slepian-Wolf coding. A decoder employs a decoding unit and an estimation unit. The decoding unit decodes the syndromes using side information to produce an estimate for the TCQ output. The side information is correlated with the source. The estimation unit estimates the block of source samples using the estimated TCQ output and the side information. Trellis coded vector quantization may be used as an alternative to TCQ.
摘要翻译：编码器采用网格编码量化（TCQ）单元和压缩单元。 TCQ使用一组已经选择的多项式来最大化粒度增益。 TCQ单元对来自源的样本块进行操作。压缩单元使用相应LDPC码的奇偶校验矩阵来压缩TCQ输出的比特平面，以获得相应的校验子。选择奇偶校验矩阵，使其压缩性能接近Slepian-Wolf编码的极限。解码器采用解码单元和估计单元。解码单元使用边信息解码校正子，以产生TCQ输出的估计。侧面信息与源相关。估计单元使用估计的TCQ输出和侧面信息来估计源样本块。网格编码矢量量化可以用作TCQ的替代。

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