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1. 发明授权

US10091515B2 Method and apparatus for intra mode derivation and coding in scalable video coding 有权
公开(公告)号：US10091515B2
公开(公告)日：2018-10-02
申请号：US14378949
申请日：2013-03-11
申请人： Shan Liu , Mei Guo , Tzu-Der Chuang , Shaw-Min Lei
发明人： Shan Liu , Mei Guo , Tzu-Der Chuang , Shaw-Min Lei
IPC分类号： H04N19/34 , H04N19/96 , H04N19/11 , H04N19/463 , H04N19/187 , H04N19/176 , H04N19/157 , H04N19/159
摘要： A method and apparatus of Intra mode coding for a scalable video coding system are disclosed. For a current Intra-coded block in the enhancement layer (EL), predictive coding is applied to the current Intra mode based on the base layer (BL) coding mode associated with the co-located block in the BL and neighboring coding modes associated with neighboring blocks of the current block in the EL. The neighboring blocks of the current block in the EL comprise a left block adjacent to a left side of the current block and a top block adjacent to a top side of the current block. One or more most probable modes (MPMs) can be derived from the neighboring coding modes and the BL coding mode, and the MPMs is then used for predictive coding of the current Intra mode.

2. 发明申请

US20150304670A1 METHOD AND APPARATUS FOR INTRA MODE DERIVATION AND CODING IN SCALABLE VIDEO CODING 审中-公开
标题翻译：用于可扩展视频编码的内部模式衍生和编码的方法和装置
公开(公告)号：US20150304670A1
公开(公告)日：2015-10-22
申请号：US14378949
申请日：2013-03-11
申请人： Shan LIU , Mei GUO , Tzu-Der CHUANG , Shaw-Min LEI
发明人： Shan Liu , Mei Guo , Tzu-Der Chuang , Shaw-Min Lei
IPC分类号： H04N19/34 , H04N19/159 , H04N19/176 , H04N19/11 , H04N19/187
CPC分类号： H04N19/34 , H04N19/11 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/187 , H04N19/463 , H04N19/96
摘要： A method and apparatus of Intra mode coding for a scalable video coding system are disclosed. For a current Intra-coded block in the enhancement layer (EL), predictive coding is applied to the current Intra mode based on the base layer (BL) coding mode associated with the co-located block in the BL and neighboring coding modes associated with neighboring blocks of the current block in the EL. The neighboring blocks of the current block in the EL comprise a left block adjacent to a left side of the current block and a top block adjacent to a top side of the current block. One or more most probable modes (MPMs) can be derived from the neighboring coding modes and the BL coding mode, and the MPMs is then used for predictive coding of the current Intra mode.
摘要翻译：公开了一种用于可分级视频编码系统的帧内编码的方法和装置。对于增强层（EL）中的当前帧内编码块，基于与BL中的同位置块相关联的基本层（BL）编码模式和与其相关联的相邻编码模式，将预测编码应用于当前帧内模式 EL中当前块的相邻块。 EL中的当前块的相邻块包括与当前块的左侧相邻的左块和与当前块的顶侧相邻的顶块。可以从相邻编码模式和BL编码模式导出一个或多个最可能的模式（MPM），然后将MPM用于当前帧内模式的预测编码。

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. 发明授权

US10462475B2 Methods of palette based prediction for non-444 color format in video and image coding 有权
公开(公告)号：US10462475B2
公开(公告)日：2019-10-29
申请号：US15534534
申请日：2015-12-16
申请人： Shan Liu , Jing Ye , Xiaozhong Xu , Jungsun Kim , Wang-Lin Lai , Shaw-Min Lei
发明人： Shan Liu , Jing Ye , Xiaozhong Xu , Jungsun Kim , Wang-Lin Lai , Shaw-Min Lei
IPC分类号： G06K9/36 , H04N19/186 , H04N19/70 , H04N19/593 , H04N19/103 , H04N19/119 , H04N19/59 , H04N11/00
摘要： A method of video coding using palette coding mode for color video in a non-444 color format is disclosed. The non-444 video data can be converted to the 444 format so that the palette designed for the 444 format can be used for the non-444 video data. For the 4:2:0 color format, each chroma sample collocated with corresponding quad luma samples is padded with three chroma samples to form converted quad chroma samples. For the 4:2:0 color format, if a current pixel does not belong to the color palette, one or more escape values are signaled for the current pixel and the escape value associated with the chroma sample of the current pixel for each color component is not signaled for three of the quad chroma sample locations collocated with corresponding quad luma samples.

6. 发明授权

US09769472B2 Method and apparatus for Intra prediction using non-square blocks 有权
公开(公告)号：US09769472B2
公开(公告)日：2017-09-19
申请号：US14234152
申请日：2012-07-26
申请人： Shan Liu , Ximin Zhang , Shaw-Min Lei
发明人： Shan Liu , Ximin Zhang , Shaw-Min Lei
IPC分类号： H04N19/105 , H04N19/182 , H04N19/136 , H04N19/176 , H04N19/147 , H04N19/11 , H04N19/132 , H04N19/70 , H04N19/119 , H04N19/122 , H04N19/593 , H04N19/33
CPC分类号： H04N19/105 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/132 , H04N19/136 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/33 , H04N19/593 , H04N19/70
摘要： A method and apparatus for Intra prediction of a block based on neighboring pixels around the block are disclosed. Embodiments according to the present invention use square blocks as well as non-square blocks for Intra prediction. For a 2N×2N Luma CU (coding unit), the CU can be partitioned into 2N×N, N×2N, 2N×2N or N×N PUs. The 2N×N and N×2N PUs can be further processed by either square transforms only or both non-square and square transforms. In one embodiment, the 2N×N PU or the N×2N PU is processed as two N×N TUs (transform units) and each of the N×N TU is further split into smaller N×N TUs based on quad-tree split. In another embodiment, the 2N×N and N×2N PUs are processed as two 2N×0.5N and 0.5N×2N TUs respectively.

7. 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.

8. 发明申请

US20120230411A1 Method and Apparatus of Transform Unit Partition with Reduced Complexity 有权
标题翻译：具有复杂度降低的变换单元分区的方法和装置
公开(公告)号：US20120230411A1
公开(公告)日：2012-09-13
申请号：US13156552
申请日：2011-06-09
申请人： Shan Liu , Zhi Zhou , Shaw-Min Lei
发明人： Shan Liu , Zhi Zhou , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/96 , H04N19/119 , H04N19/176 , H04N19/70
摘要： Three block concepts are introduced in HEVC: coding unit (CU), prediction unit (PU), and transform unit (TU). The overall coding structure is characterized by the various sizes of CU, PU and TU in a recursive fashion. For transform processing in current HEVC, a hierarchy RQT (Residual Quad Tree) is used and the TU size is related to the CU size, but independent of the PU size. This results in high encoding complexity and also causes increased processing time to process the syntax of residual quad tree. Accordingly a modified transform unit partition with reduced complexity is disclosed. According to an embodiment, the TU size may be restricted to the minimum of PU width and height, except for a 2N×2N coding unit with the 2N×2N partition type. In another embodiment, the maximum TU size equals to maximum of PU width and height, and the minimum TU size equals to minimum of the PU width and height, except for a 2N×2N coding unit with the 2N×2N partition type. In yet another embodiment, the TU size is selected between 2N×2N and N×N for the 2N×2N, 2N×N, N×2N and N×N partition types. The syntax element, split_transform_flag, is used to indicate the selection of 2N×2N or N×N TU size when needed. Furthermore, a method with reduced complexity of selecting the best merge candidate for the 2N×2N CU merge mode is disclosed. The method relies on R-D cost associated with the motion vector of merge candidate to reduce required computation.
摘要翻译：在HEVC中引入了三个块概念：编码单元（CU），预测单元（PU）和变换单元（TU）。总体编码结构的特征在于以递归方式各种尺寸的CU，PU和TU。对于当前HEVC中的变换处理，使用层次RQT（残余四叉树），并且TU大小与CU大小相关，但与PU大小无关。这导致高编码复杂度，并且还导致处理剩余四叉树语法的处理时间增加。因此，公开了具有降低的复杂性的修改的变换单元分区。根据实施例，除了具有2N×2N分区类型的2N×2N编码单元之外，TU大小可以被限制为PU宽度和高度的最小值。在另一个实施例中，除了具有2N×2N分区类型的2N×2N编码单元之外，最大TU大小等于PU宽度和高度的最大值，并且最小TU大小等于PU宽度和高度的最小值。在另一个实施例中，对于2N×2N，2N×N，N×2N和N×N个分区类型，在2N×2N和N×N之间选择TU大小。语法元素split_transform_flag用于在需要时指示2N×2N或N×N TU大小的选择。此外，公开了一种选择2N×2N CU合并模式的最佳合并候选的复杂度降低的方法。该方法依赖于与合并候选的运动矢量相关联的R-D成本来减少所需的计算。

9. 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。

10. 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。

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