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1. 发明授权

US08526495B2 Apparatus and method of constrained partition size for high efficiency video coding 有权
标题翻译：用于高效率视频编码的约束分区大小的装置和方法
公开(公告)号：US08526495B2
公开(公告)日：2013-09-03
申请号：US13012811
申请日：2011-01-25
申请人： Shan Liu , Yu-Wen Huang , Yung-Chang Chang , Shaw-Min Lei
发明人： Shan Liu , Yu-Wen Huang , Yung-Chang Chang , Shaw-Min Lei
IPC分类号： H04B1/66 , H04N7/26
CPC分类号： H04N19/177 , H04N19/119 , H04N19/122 , H04N19/159 , H04N19/176 , H04N19/70 , H04N19/96
摘要： An apparatus and method for video coding and decoding with constrained PU partition are disclosed. In the High Efficient Video Coding (HEVC) system, rate-distortion function or other performance criterion usually is evaluated for various CU partition and PU partition during the encoding process in order to select a configuration with best possible performance. The PU design in the current HEVC development results in some redundancy that causes rate-distortion function or other performance criterion repeatedly evaluated for same PU configuration. Accordingly, constrained PU partition is developed to eliminate or reduce the redundancy in processing. Furthermore, necessary syntax to convey the information related to constrained PU partition between an encoder and a decoder is developed. Systems embodying the present invention has been shown to result in sizeable reduction in encoding and decoding time while the performance in terms of RD-rate remains approximately the same or slightly higher than a conventional HEVC system.
摘要翻译：公开了一种用于具有约束PU分区的视频编码和解码的装置和方法。在高效视频编码（HEVC）系统中，通常在编码过程中针对各种CU分区和PU分区评估速率失真函数或其他性能标准，以选择具有最佳性能的配置。在当前HEVC开发中的PU设计导致一些冗余，导致对相同PU配置重复评估的速率失真功能或其他性能标准。因此，开发了约束PU分区以消除或减少处理中的冗余。此外，开发了在编码器和解码器之间传送与约束PU分区有关的信息的必要语法。已经显示体现本发明的系统导致编码和解码时间的相当大的降低，而在RD速率方面的性能保持与常规HEVC系统大致相同或略高。

2. 发明申请

US20120128067A1 Apparatus and Method of Constrained Partition Size for High Efficiency Video Coding 有权
标题翻译：用于高效率视频编码的约束分区大小的装置和方法
公开(公告)号：US20120128067A1
公开(公告)日：2012-05-24
申请号：US13012811
申请日：2011-01-25
申请人： Shan Liu , Yu-Wen Huang , Yung-Chang Chang , Shaw-Min Lei
发明人： Shan Liu , Yu-Wen Huang , Yung-Chang Chang , Shaw-Min Lei
IPC分类号： H04N7/12
CPC分类号： H04N19/177 , H04N19/119 , H04N19/122 , H04N19/159 , H04N19/176 , H04N19/70 , H04N19/96
摘要： An apparatus and method for video coding and decoding with constrained PU partition are disclosed. In the High Efficient Video Coding (HEVC) system, rate-distortion function or other performance criterion usually is evaluated for various CU partition and PU partition during the encoding process in order to select a configuration with best possible performance. The PU design in the current HEVC development results in some redundancy that causes rate-distortion function or other performance criterion repeatedly evaluated for same PU configuration. Accordingly, constrained PU partition is developed to eliminate or reduce the redundancy in processing. Furthermore, necessary syntax to convey the information related to constrained PU partition between an encoder and a decoder is developed. Systems embodying the present invention has been shown to result in sizeable reduction in encoding and decoding time while the performance in terms of RD-rate remains approximately the same or slightly higher than a conventional HEVC system.
摘要翻译：公开了一种用于具有约束PU分区的视频编码和解码的装置和方法。在高效视频编码（HEVC）系统中，通常在编码过程中针对各种CU分区和PU分区评估速率失真函数或其他性能标准，以选择具有最佳性能的配置。在当前HEVC开发中的PU设计导致一些冗余，导致对相同PU配置重复评估的速率失真功能或其他性能标准。因此，开发了约束PU分区以消除或减少处理中的冗余。此外，开发了在编码器和解码器之间传送与约束PU分区有关的信息的必要语法。已经显示体现本发明的系统导致编码和解码时间的相当大的降低，而在RD速率方面的性能保持与常规HEVC系统大致相同或略高。

3. 发明授权

US10123008B2 Method and apparatus for coding of intra prediction mode 有权
公开(公告)号：US10123008B2
公开(公告)日：2018-11-06
申请号：US14123093
申请日：2012-06-14
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
IPC分类号： H04N7/32 , H04N7/26 , H04N19/11 , H04N19/159 , H04N19/176 , H04N19/70 , H04N19/593 , H04N19/463 , H04N19/186 , H04N19/136 , H04N19/169 , H04N19/44 , H04N19/91
摘要： Embodiments according to the present invention configure the intra prediction mode candidates into multi-level MPM sets, which comprise at least a first-level MPM set and a second-level MPM set. Encoding or decoding a current intra prediction mode is based on the multi-level MPM sets, where one syntax element of the syntax information to be generated or decoded respectively is associated with evaluating the current intra prediction mode using the first-level MPM set. A method and apparatus for chroma intra prediction mode encoding and decoding are also disclosed. The chroma intra prediction mode set includes a Luma-based chroma prediction Mode (LM), a Direct Mode (DM) and four other modes. The codeword set comprises variable-length codewords and fixed-length codewords, and the fixed-length codewords are longer than the variable-length codewords. The variable-length codewords are used for the DM and LM, and the fixed-length codewords are used for the four other modes.

4. 发明申请

US20140086323A1 METHOD AND APPARATUS FOR CODING OF INTRA PREDICTION MODE 审中-公开
标题翻译：内部预测模式编码的方法和装置
公开(公告)号：US20140086323A1
公开(公告)日：2014-03-27
申请号：US14123093
申请日：2012-06-14
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
IPC分类号： H04N7/32 , H04N7/26
CPC分类号： H04N19/11 , H04N19/136 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/1887 , H04N19/44 , H04N19/463 , H04N19/593 , H04N19/70 , H04N19/91
摘要： Embodiments according to the present invention configure the intra prediction mode candidates into multi-level MPM sets, which comprise at least a first-level MPM set and a second-level MPM set. Encoding or decoding a current intra prediction mode is based on the multi-level MPM sets, where one syntax element of the syntax information to be generated or decoded respectively is associated with evaluating the current intra prediction mode using the first-level MPM set. A method and apparatus for spectively is associated with evaluating the current intra prediction mode using the first-level MPM set. A method and apparatus for chroma intra prediction mode encoding and decoding are also disclosed. The chroma intra prediction mode set includes a Luma-based chroma prediction Mode (LM), a Direct Mode (DM) and four other modes. The codeword set comprises variable-length codewords and fixed-length codewords, and the fixed-length codewords are longer than the variable-length codewords. The variable-length codewords are used for the DM and LM, and the fixed-length codewords are used for the four other modes.
摘要翻译：根据本发明的实施例将帧内预测模式候选配置为包括至少第一级MPM集合和第二级MPM集合的多级MPM集合。当前帧内预测模式的编码或解码是基于多级MPM集合，其中分别生成或解码的语法信息的一个语法元素与使用第一级MPM集合评估当前帧内预测模式相关联。用于分光学的方法和装置与使用第一级MPM集合评估当前帧内预测模式相关联。还公开了一种用于色度帧内预测模式编码和解码的方法和装置。色度帧内预测模式集包括基于亮度的色度预测模式（LM），直接模式（DM）和其它四种模式。码字组包括可变长度码字和固定长度码字，并且固定长度码字比可变长度码字长。可变长度码字用于DM和LM，固定长度码字用于其他四种模式。

5. 发明申请

US20130022129A1 Method and Apparatus for Compressing Coding Unit in High Efficiency Video Coding 有权
公开(公告)号：US20130022129A1
公开(公告)日：2013-01-24
申请号：US13272221
申请日：2011-10-13
申请人： Shan Liu , Yu-Wen Huang , Shaw-Min Lei
发明人： Shan Liu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/51 , H04N19/119 , H04N19/13 , H04N19/147 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/463 , H04N19/647 , H04N19/91 , H04N19/96
摘要： In HEVC (High Efficiency Video Coding), a 2N×2N coding unit can be partitioned into various partition types hierarchically. The coding system uses a criterion to determine the best partition, where RD-rate is often used as the criterion. N×N partition at level k becomes redundant if 2N×2N at level k+1 will be evaluated. In order to eliminate the above redundancy, the allowable partition sizes are constrained according to a method previously disclosed. In the current invention, the complexity is further reduced. According to one embodiment, N×N partition is not allowed for any INTER mode regardless of the coding unit size. Furthermore, flexibility is provided so that either the method and apparatus with further complexity reduction can be selected or an alternative method and apparatus can be selected. Syntaxes to support embodiments according to the present invention are also disclosed.

6. 发明授权

US09525884B2 Method and apparatus of slice boundary filtering for high efficiency video coding 有权
标题翻译：用于高效率视频编码的片边界滤波的方法和装置
公开(公告)号：US09525884B2
公开(公告)日：2016-12-20
申请号：US12978490
申请日：2010-12-24
申请人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Shan Liu , Shaw-Min Lei
发明人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Shan Liu , Shaw-Min Lei
IPC分类号： H04N19/86 , H04N19/70 , H04N19/436 , H04N19/42 , H04N19/174 , H04N19/117 , H04N19/136 , H04N19/82 , H04N19/13 , H04N7/26 , H04N19/115 , H04N19/61
CPC分类号： H04N19/439 , H04N19/115 , H04N19/117 , H04N19/136 , H04N19/174 , H04N19/436 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/86
摘要： An apparatus and method for video coding having intra-slice deblocking, intra-slice adaptive loop filter, and intra-slice adaptive offset are disclosed. In a video coding system, a picture is often divided into slices and each slice is independently processed so that errors or missing data from one slice cannot propagate to any other slice within the picture. In the recent high efficiency video coding (HEVC) development, deblock filtering (DF), adaptive loop filter (ALF) and adaptive offset (AO) may be applied to reconstructed slices. When the processing is applied across slice boundaries, it may rely on pixels outside the current slice and cause dependency of the current slice on other slice(s). Consequently, the DF/ALF/AO processing on a reconstructed slice may have to wait until the reconstructed slices that it is dependent from complete the DF/ALF/AO processing. To overcome the slice boundary issue, intra-slice DF/ALF/AO is developed that does not rely on any pixel outside the currently slice. An optional slice boundary filter may be applied to slice boundaries after all slices are processed by the intra-slice DF/ALF/AO.
摘要翻译：公开了一种具有片内解块，片内自适应环路滤波器和片内自适应偏移的视频编码的装置和方法。在视频编码系统中，图像通常被分成片，并且每个片被独立地处理，使得来自一个片的错误或丢失的数据不能传播到图片内的任何其他片。在最近的高效率视频编码（HEVC）开发中，解块滤波（DF），自适应环路滤波器（ALF）和自适应偏移（AO）可以应用于重构的片段。当跨越切片边界应用处理时，它可以依赖于当前切片外部的像素，并且导致当前切片对其他切片的依赖。因此，在重构的切片上的DF / ALF / AO处理可能必须等待直至重构的切片依赖于完成DF / ALF / AO处理。为了克服切片边界问题，开发了片内DF / ALF / AO，其不依赖于当前切片之外的任何像素。在片内DF / ALF / AO处理所有片段之后，可选择的片边界滤波器可应用于片边界。

7. 发明申请

US20120106624A1 Method and Apparatus of Slice Boundary Filtering for High Efficiency Video Coding 有权
标题翻译：用于高效率视频编码的切片边界滤波的方法和装置
公开(公告)号：US20120106624A1
公开(公告)日：2012-05-03
申请号：US12978490
申请日：2010-12-24
申请人： Yu-Wen Huang , Chih-Ming Fu , Ching-Yeh Chen , Chih-Wei Hsu , Shan Liu , Shaw-Min Lei
发明人： Yu-Wen Huang , Chih-Ming Fu , Ching-Yeh Chen , Chih-Wei Hsu , Shan Liu , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/439 , H04N19/115 , H04N19/117 , H04N19/136 , H04N19/174 , H04N19/436 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/86
摘要： An apparatus and method for video coding having intra-slice deblocking, intra-slice adaptive loop filter, and intra-slice adaptive offset are disclosed. In a video coding system, a picture is often divided into slices and each slice is independently processed so that errors or missing data from one slice cannot propagate to any other slice within the picture. In the recent high efficiency video coding (HEVC) development, deblock filtering (DF), adaptive loop filter (ALF) and adaptive offset (AO) may be applied to reconstructed slices. When the processing is applied across slice boundaries, it may rely on pixels outside the current slice and cause dependency of the current slice on other slice(s). Consequently, the DF/ALF/AO processing on a reconstructed slice may have to wait until the reconstructed slices that it is dependent from complete the DF/ALF/AO processing. To overcome the slice boundary issue, intra-slice DF/ALF/AO is developed that does not rely on any pixel outside the currently slice. An optional slice boundary filter may be applied to slice boundaries after all slices are processed by the intra-slice DF/ALF/AO.
摘要翻译：公开了一种具有片内解块，片内自适应环路滤波器和片内自适应偏移的视频编码的装置和方法。在视频编码系统中，图像通常被分成片，并且每个片被独立地处理，使得来自一个片的错误或丢失的数据不能传播到图片内的任何其他片。在最近的高效率视频编码（HEVC）开发中，解块滤波（DF），自适应环路滤波器（ALF）和自适应偏移（AO）可以应用于重构的片段。当跨越切片边界应用处理时，它可以依赖于当前切片外部的像素，并且导致当前切片对其他切片的依赖。因此，在重构的切片上的DF / ALF / AO处理可能必须等待直至重构的切片依赖于完成DF / ALF / AO处理。为了克服切片边界问题，开发了片内DF / ALF / AO，其不依赖于当前切片之外的任何像素。在片内DF / ALF / AO处理所有片段之后，可选择的片边界滤波器可应用于片边界。

8. 发明授权

US09049452B2 Method and apparatus for compressing coding unit in high efficiency video coding 有权
标题翻译：用于在高效率视频编码中压缩编码单元的方法和装置
公开(公告)号：US09049452B2
公开(公告)日：2015-06-02
申请号：US13272221
申请日：2011-10-13
申请人： Shan Liu , Yu-Wen Huang , Shaw-Min Lei
发明人： Shan Liu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04B1/66 , H04N19/463 , H04N19/176 , H04N19/119 , H04N19/147 , H04N19/96 , H04N7/26 , H04N19/159
CPC分类号： H04N19/51 , H04N19/119 , H04N19/13 , H04N19/147 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/463 , H04N19/647 , H04N19/91 , H04N19/96
摘要： In HEVC (High Efficiency Video Coding), a 2N×2N coding unit can be partitioned into various partition types hierarchically. The coding system uses a criterion to determine the best partition, where RD-rate is often used as the criterion. N×N partition at level k becomes redundant if 2N×2N at level k+1 will be evaluated. In order to eliminate the above redundancy, the allowable partition sizes are constrained according to a method previously disclosed. In the current invention, the complexity is further reduced. According to one embodiment, N×N partition is not allowed for any INTER mode regardless of the coding unit size. Furthermore, flexibility is provided so that either the method and apparatus with further complexity reduction can be selected or an alternative method and apparatus can be selected. Syntaxes to support embodiments according to the present invention are also disclosed.
摘要翻译：在HEVC（高效率视频编码）中，2N×2N个编码单元可以分层划分成各种分区类型。编码系统使用标准来确定最佳分区，其中通常使用RD率作为标准。如果在级别k + 1处的2N×2N将被评估，则级别k的N×N分区变得冗余。为了消除上述冗余，根据先前公开的方法来限制允许的分区大小。在本发明中，复杂性进一步降低。根据一个实施例，无论编码单元大小如何，对于任何INTER模式，不允许N×N分区。此外，提供灵活性，使得可以选择具有进一步复杂度降低的方法和装置，或者可以选择替代方法和装置。还公开了用于支持根据本发明的实施例的语法。

9. 发明授权

US09762925B2 Adaptive interpolation filter for video coding 有权
公开(公告)号：US09762925B2
公开(公告)日：2017-09-12
申请号：US12405250
申请日：2009-03-17
申请人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N11/00 , H04N19/523 , H04N19/147 , H04N19/46 , H04N19/117 , H04N19/19 , H04N19/82 , H04N19/436 , H04N19/176 , H04N19/142 , H04N19/433 , H04N19/86
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder that utilizes adaptive interpolation filtering for coding video data includes a prediction unit, a reconstruction unit, a reference picture buffer, a filter parameter estimator for estimating filter parameters according to the original video data and the predicted samples, and an adaptive interpolation filter for utilizing the stored filter parameters to perform filtering on the reconstructed video data.

10. 发明授权

US09307239B2 Method and apparatus for derivation of motion vector candidate and motion vector prediction candidate 有权
标题翻译：用于推导运动矢量候选和运动矢量预测候选的方法和装置
公开(公告)号：US09307239B2
公开(公告)日：2016-04-05
申请号：US13990345
申请日：2012-03-13
申请人： Jian-Liang Lin , Yi-Wen Chen , Yu-Pao Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Jian-Liang Lin , Yi-Wen Chen , Yu-Pao Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N11/04 , H04N19/56 , H04N19/52
CPC分类号： H04N19/52 , H04N19/533 , H04N19/56
摘要： An apparatus and method for deriving a motion vector predictor are disclosed. A search set comprising of multiple (spatial, or temporal) search MVs with priority is determined, wherein the search MVs for multiple neighboring reference block or one or more co-located reference blocks are configured into multiple search MV groups. In order to improve coding efficiency, embodiments according to the present invention, perform redundancy check every time after a search MV group is searched to determine whether an available search MV found. If an available search MV is found and the available search MV is not the same as a previously derived motion vector predictor (MVP), the available search MV is used as the MVP and the MVP derivation process terminates. Otherwise, the MVP derivation process moves to the next reference block. The search MV group can be configured to include different search MV(s) associated with reference blocks.
摘要翻译：公开了一种用于导出运动矢量预测器的装置和方法。确定包括具有优先级的多个（空间或时间）搜索MV的搜索集，其中多个相邻参考块或一个或多个同位置参考块的搜索MV被配置为多个搜索MV组。为了提高编码效率，根据本发明的实施例，在搜索MV组被搜索之后每次执行冗余校验以确定是否找到可用的搜索MV。如果找到可用的搜索MV并且可用的搜索MV与先前导出的运动向量预测器（MVP）不相同，那么使用可用的搜索MV作为MVP并且MVP导出处理终止。否则，MVP导出过程移动到下一个参考块。搜索MV组可以被配置为包括与参考块相关联的不同搜索MV。

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