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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。

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