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.

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。

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.

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。

公开(公告)号：US20120114034A1

公开(公告)日：2012-05-10

申请号：US13018431

申请日：2011-02-01

申请人： Yu-Wen Huang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Chih-Wei Hsu ,  Yu-Lin Chang ,  Tzu-Der Chuang ,  Shaw-Min Lei

发明人： Yu-Wen Huang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Chih-Wei Hsu ,  Yu-Lin Chang ,  Tzu-Der Chuang ,  Shaw-Min Lei

IPC分类号： H04N7/12

CPC分类号： H04N19/174 ,  H04N19/103 ,  H04N19/119 ,  H04N19/126 ,  H04N19/13 ,  H04N19/146 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/463 ,  H04N19/70 ,  H04N19/96

摘要： In the current high efficiency video coding development, each LCU has its own quantization parameter (QP) and the difference between a current QP and a reference QP is transmitted instead of the QP value itself. Since the LCU is much larger than the macroblock of AVC/H.264, using one delta QP per LCU may cause rate control unable to adapt to the bitrate quickly enough. Consequently there is a need to adopt delta QP in units smaller than LCU to provide more granular rate control. Furthermore, it is desirable to develop a system that is capable of facilitating more flexible delta QP. Accordingly, adaptive quantization parameter processing is disclosed where a QP minimum CU size for incorporating or deriving a delta QP is indicated selectively in the slice level or in the sequence/picture level. In one variation, the delta QP is incorporated or derived only if nonzero quantized transform coefficients exist in a leaf CU that is larger than the QP minimum CU size. In another variation, quantization parameter information is only incorporated or derived when a leaf CU has any nonzero quantized transform coefficient. In yet another variation, a flag is used to indicate whether one delta QP per LCU is transmitted if the LCU has any nonzero quantized transform coefficient or one delta QP per leaf CU is transmitted if the leaf CU has any nonzero quantized transform coefficient.

摘要翻译： 在当前的高效率视频编码开发中，每个LCU具有其自己的量化参数（QP），并且发送当前QP与参考QP之间的差异而不是QP值本身。 由于LCU比AVC / H.264的宏块大得多，因此使用每个LCU的一个delta QP可能导致速率控制不能足够快地适应比特率。 因此，需要采用小于LCU的单位的delta QP来提供更细粒度的速率控制。 此外，期望开发能够促进更灵活的delta QP的系统。 因此，公开了自适应量化参数处理，其中用于合并或导出增量QP的QP最小CU尺寸在片级或序列/画面级别中有选择地表示。 在一个变型中，只有当非零量化变换系数存在于大于QP最小CU尺寸的叶CU中时，才加入或推导增量QP。 在另一个变型中，当叶CU具有任何非零量化变换系数时，仅结合或导出量化参数信息。 在又一个变型中，如果LCU具有任何非零量化变换系数，或者如果叶CU具有任何非零量化变换系数，则发送每个叶CU，则发送每个LCU一个ΔQP是否被发送的标志。

公开(公告)号：US20140003495A1

公开(公告)日：2014-01-02

申请号：US14005555

申请日：2012-05-31

申请人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Yu-Wen Huang ,  Shaw-Min Lei

发明人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC分类号： H04N7/26

CPC分类号： H04N19/51 ,  H04N19/119 ,  H04N19/30 ,  H04N19/33 ,  H04N19/463 ,  H04N19/517 ,  H04N19/52

摘要： A method and apparatus for scalable video coding are disclosed, wherein the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) and wherein the EL has higher spatial resolution or better video quality than the BL. According to embodiments of the present invention, information from the base layer is exploited for coding the enhancement layer. The information coding for the enhancement layer includes CU structure, motion vector predictor (MVP) information, MVP/merge candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptive entropy coding, Adaptive Lop Filter (ALF), Sample Adaptive Offset (SAO), and deblocking filter.

摘要翻译： 公开了一种用于可缩放视频编码的方法和装置，其中将视频数据配置为基本层（BL）和增强层（EL），并且其中EL具有比BL更高的空间分辨率或更好的视频质量。 根据本发明的实施例，利用来自基础层的信息来对增强层进行编码。 增强层的信息编码包括CU结构，运动矢量预测器（MVP）信息，MVP /合并候选，帧内预测模式，残余四叉树信息，纹理信息，残差信息，上下文自适应熵编码，自适应Lop滤波器（ALF） 采样自适应偏移（SAO）和去块滤波器。

公开(公告)号：US09860528B2

公开(公告)日：2018-01-02

申请号：US14005555

申请日：2012-05-31

申请人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Yu-Wen Huang ,  Shaw-Min Lei

发明人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC分类号： H04N7/12 ,  H04N19/107 ,  H04N19/52 ,  H04N19/119 ,  H04N19/463 ,  H04N19/33 ,  H04N19/51 ,  H04N19/30 ,  H04N19/517

CPC分类号： H04N19/51 ,  H04N19/119 ,  H04N19/30 ,  H04N19/33 ,  H04N19/463 ,  H04N19/517 ,  H04N19/52

摘要： A method and apparatus for scalable video coding are disclosed, wherein the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) and wherein the EL has higher spatial resolution or better video quality than the BL. According to embodiments of the present invention, information from the base layer is exploited for coding the enhancement layer. The information coding for the enhancement layer includes CU structure, motion vector predictor (MVP) information, MVP/merge candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptive entropy coding, Adaptive Lop Filter (ALF), Sample Adaptive Offset (SAO), and deblocking filter.

公开(公告)号：US09762918B2

公开(公告)日：2017-09-12

申请号：US13985282

申请日：2012-04-23

申请人： Tzu-Der Chuang ,  Yu-Wen Huang ,  Ching-Yeh Chen

发明人： Tzu-Der Chuang ,  Yu-Wen Huang ,  Ching-Yeh Chen

IPC分类号： H04N19/176 ,  H04N19/102 ,  H04N19/463 ,  H04N19/91 ,  H04N19/13 ,  H04N19/159 ,  H04N19/167

CPC分类号： H04N19/176 ,  H04N19/102 ,  H04N19/13 ,  H04N19/159 ,  H04N19/167 ,  H04N19/463 ,  H04N19/91

摘要： A method and apparatus of line buffer reduction for context adaptive entropy processing are disclosed. The context formation for context adaptive entropy processing depends on block information associated with one or more neighboring blocks. When the neighboring block is on a different side of a region boundary from the current block, the block information is replaced by replacement block information to reduce or remove line buffer requirement for storing the block information of neighboring blocks on the other side of the region boundaries from the current block. The context adaptive entropy processing is CABAC encoding, CABAC decoding, CAVLC encoding, or CAVLC decoding.

公开(公告)号：US09509989B2

公开(公告)日：2016-11-29

申请号：US14234151

申请日：2012-08-02

申请人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

发明人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC分类号： H04N19/10 ,  H04N19/21 ,  H04N19/60 ,  H04N19/70 ,  H03M7/40 ,  H04N19/88 ,  H04N19/436 ,  H04N19/91

CPC分类号： H03M7/4018 ,  H04N19/159 ,  H04N19/21 ,  H04N19/436 ,  H04N19/70 ,  H04N19/88 ,  H04N19/91

摘要： A method and apparatus of context-based adaptive binary arithmetic encoding/decoding for syntax elements of one or more blocks are disclosed. According to one embodiment of the present invention, the binarization results of the x and y positions of the last significant coefficient of a transform unit are reordered by collecting the bypass bins together. According to another embodiment of the present invention, binarization results of syntax elements from two or more of four Intra N×N prediction units, including prev_intra_luma_pred_flag, rem_intra_luma_pred_mode, and mpm_idx are reordered by collecting the bypass bins together. In yet another embodiment according to the present invention, the binarization results of other syntax elements are also reordered by collecting bypass bins together. Furthermore, the above reordering of binarization results may be used for binarization results corresponding to a block and its neighboring blocks.

摘要翻译： 公开了用于一个或多个块的语法元素的基于上下文的自适应二进制算术编码/解码的方法和装置。 根据本发明的一个实施例，变换单元的最后一个有效系数的x和y位置的二值化结果通过将旁路箱收集在一起来重新排序。 根据本发明的另一实施例，通过将旁路箱收集在一起来重新排序，包括prev_intra_luma_pred_flag，rem_intra_luma_pred_mode和mpm_idx的四个内部N×N个预测单元中的两个或更多个的语法元素的二值化结果。 在根据本发明的另一个实施例中，其他语法元素的二值化结果也通过将旁路容器收集在一起来重新排序。 此外，二值化结果的上述重新排序可以用于对应于块及其相邻块的二值化结果。

公开(公告)号：US20140192861A1

公开(公告)日：2014-07-10

申请号：US14234151

申请日：2012-08-02

申请人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

发明人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC分类号： H04N19/21 ,  H04N19/60 ,  H04N19/10 ,  H04N19/70

CPC分类号： H03M7/4018 ,  H04N19/159 ,  H04N19/21 ,  H04N19/436 ,  H04N19/70 ,  H04N19/88 ,  H04N19/91

摘要： A method and apparatus of context-based adaptive binary arithmetic encoding/decoding for syntax elements of one or more blocks are disclosed. According to one embodiment of the present invention, the binarization results of the x and y positions of the last significant coefficient of a transform unit are reordered by collecting the bypass bins together. According to another embodiment of the present invention, binarization results of syntax elements from two or more of four Intra N×N prediction units, including prev_intra_luma_pred_flag, rem_intra_luma_pred_mode, and mpm_idx are reordered by collecting the bypass bins together. In yet another embodiment according to the present invention, the binarization results of other syntax elements are also reordered by collecting bypass bins together. Furthermore, the above reordering of binarization results may be used for binarization results corresponding to a block and its neighboring blocks.

摘要翻译： 公开了用于一个或多个块的语法元素的基于上下文的自适应二进制算术编码/解码的方法和装置。 根据本发明的一个实施例，变换单元的最后一个有效系数的x和y位置的二值化结果通过将旁路箱收集在一起来重新排序。 根据本发明的另一实施例，通过将旁路箱收集在一起来重新排序，包括prev_intra_luma_pred_flag，rem_intra_luma_pred_mode和mpm_idx的四个内部N×N个预测单元中的两个或更多个的语法元素的二值化结果。 在根据本发明的另一个实施例中，其他语法元素的二值化结果也通过将旁路容器收集在一起来重新排序。 此外，二值化结果的上述重新排序可以用于对应于块及其相邻块的二值化结果。