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11. 发明授权

US09813738B2 Method and apparatus of adaptive loop filtering 有权
公开(公告)号：US09813738B2
公开(公告)日：2017-11-07
申请号：US13216242
申请日：2011-08-24
申请人： Chia-Yang Tsai , Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Shaw-Min Lei
发明人： Chia-Yang Tsai , Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N19/82 , H04N19/42 , H04N19/80 , H04N19/147 , H04N19/176 , H04N19/17 , H04N19/182 , H04N19/119 , H04N19/117
CPC分类号： H04N19/82 , H04N19/117 , H04N19/119 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/439 , H04N19/80
摘要： A method and apparatus for processing in-loop reconstructed video using an in-loop filter is disclosed. In the recent HEVC development, adaptive loop filtering (ALF) is being adopted to process in-loop reconstruction video data, where ALF can be selectively turned ON or OFF for each block in a frame or a slice. An advanced ALF is disclosed later that allows a choice of multiple filter sets that can be applied to the reconstructed video data adaptively. In the present disclosure, pixels of the in-loop reconstructed video data are divided into a plurality of to-be-filtered regions, and an in-loop filter from a filter set is determined for each to-be-filtered region based on a rate-distortion optimization procedure. According to one embodiment of the present invention, computation of cost function associated with the rate-distortion optimization procedure is related to correlation values associated with original video data and the in-loop reconstructed video data. Furthermore, the correlation values can be shared by the multiple candidate filters during the rate-distortion optimization procedure for said each to-be-filtered region. In another embodiment, the correlation values can be shared by multiple candidate to-be-filtered regions of an area of the in-loop reconstructed video data during the rate-distortion optimization procedure for the area of the in-loop reconstructed video data.

12. 发明授权

US09565428B2 Method and apparatus of chroma intra prediction with reduced line memory 有权
标题翻译：色度帧内预测的方法和装置，减少行记忆
公开(公告)号：US09565428B2
公开(公告)日：2017-02-07
申请号：US14123094
申请日：2012-06-15
申请人： Mei Guo , Xun Guo , Yu-Wen Huang , Shaw-Min Lei
发明人： Mei Guo , Xun Guo , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： G06K9/36 , G06K9/46 , H04N19/105 , H04N19/96 , H04N19/593 , H04N19/136 , H04N19/186 , H04N19/182 , H04N19/433
CPC分类号： H04N19/105 , H04N19/136 , H04N19/182 , H04N19/186 , H04N19/433 , H04N19/593 , H04N19/96
摘要： A method and apparatus for chroma intra prediction for a current chroma block with reduced line memory requirement are disclosed. The chroma intra predictor is derived from reconstructed luma pixels of a current luma block using a model with parameters. In various embodiments according to the present invention, the derivation of the parameters relies on a reconstructed luma pixel set corresponding to neighboring reconstructed luma pixels from causal luma neighboring areas of the current luma block, wherein said causal luma neighboring areas include a first area corresponding to reconstructed luma pixels above a horizontal luma block boundary on a top side of the current luma block, and wherein the reconstructed luma pixels from the first area that are included in the reconstructed luma pixel set are from a luma pixel line immediately above the horizontal luma block boundary.
摘要翻译：公开了一种具有减少的行存储器要求的当前色度块的色度帧内预测的方法和装置。色度内预测器是使用具有参数的模型从当前亮度块的重建亮度像素导出的。在根据本发明的各种实施例中，参数的推导依赖于对应于来自当前亮度块的因果亮度相邻区域的相邻重建亮度像素的重构亮度像素集，其中所述因果亮度相邻区域包括对应于在当前亮度块的顶侧上的水平亮度块边界上方的重建亮度像素，并且其中包括在重建亮度像素组中的来自第一区域的重建亮度像素来自水平亮度块正上方的亮度像素线边界。

13. 发明授权

US09300963B2 Method and apparatus for parsing error robustness of temporal motion vector prediction 有权
标题翻译：解析时间运动矢量预测误差鲁棒性的方法和装置
公开(公告)号：US09300963B2
公开(公告)日：2016-03-29
申请号：US13879903
申请日：2012-01-19
申请人： Jian-Liang Lin , Yi-Wen Chen , Yu-Wen Huang , Chih-Ming Fu , Chi-Ling Wu , Yu-Pao Tsai , Ching-Yeh Chen , Shaw-Min Lei
发明人： Jian-Liang Lin , Yi-Wen Chen , Yu-Wen Huang , Chih-Ming Fu , Chi-Ling Wu , Yu-Pao Tsai , Ching-Yeh Chen , Shaw-Min Lei
IPC分类号： H04N11/02 , H04N19/65 , H04N19/52
CPC分类号： H04N19/109 , H04N19/119 , H04N19/139 , H04N19/147 , H04N19/174 , H04N19/177 , H04N19/184 , H04N19/52 , H04N19/567 , H04N19/593 , H04N19/615 , H04N19/65 , H04N19/70 , H04N19/895
摘要： A method and apparatus for deriving a motion vector predictor (MVP) are disclosed. The MVP is selected from spatial MVP and temporal MVP candidates. The method uses a flag to indicate whether temporal MVP candidates are disabled. If the flag indicates that the temporal MVP candidates are disabled, the MVP is derived from the spatial MVP candidates only. Otherwise, the MVP is derived from the spatial and temporal MVP candidates. The method may further skip spatial redundant MVP removal by comparing MV values. Furthermore, the parsing error robustness scheme determines a forced temporal MVP when a temporal MVP is not available and the temporal MVP candidates are allowed as indicated by the flag. The flag may be incorporated in sequence, picture, slice level, or a combination of these levels.
摘要翻译：公开了一种用于导出运动矢量预测器（MVP）的方法和装置。 MVP从空间MVP和时间MVP候选中选择。该方法使用标志来指示是否禁用时间MVP候选。如果标志指示时间MVP候选被禁用，则MVP仅从空间MVP候选导出。否则，MVP是从空间和时间MVP候选导出的。该方法可以通过比较MV值来进一步跳过空间冗余MVP去除。此外，解析误差鲁棒性方案在时间MVP不可用时确定强制时间MVP，并且如标志所指示的那样允许时间MVP候选。标志可以按序列，图片，切片级别或这些级别的组合来合并。

14. 发明申请

US20150304662A1 METHOD AND APPARATUS FOR BLOCK PARTITION OF CHROMA SUBSAMPLING FORMATS 有权
标题翻译：用于分离色谱分离格式的方法和装置
公开(公告)号：US20150304662A1
公开(公告)日：2015-10-22
申请号：US14378969
申请日：2013-04-12
申请人： Shan LIU , Shaw-Min LEI
发明人： Shan Liu , Shaw-Min Lei
IPC分类号： H04N19/159 , H04N19/96 , H04N19/186 , H04N19/61 , H04N19/122 , H04N19/176
CPC分类号： H04N19/159 , H04N19/122 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/61 , H04N19/96
摘要： A method and apparatus for video data processing for video in YUV422 or YUV 444 formats are disclosed. In one embodiment, for a 2N×2N luma coding unit (CU) in YUV422 format, the transform process partitions residue data corresponding to the 2N×2N luma CU and the N×2N chroma CU into square luma and chroma transform units (TUs). The residue data associated with the luma and the chroma CUs are generated by applying prediction process to the luma CU and the chroma CU. The transform process is independent of prediction block size or prediction mode associated with the prediction process. In another embodiment, the prediction process splits the CU into two prediction blocks. Transform process is applied on the chroma residue data corresponding to the chroma CU to form one or more chroma TUs, wherein the transform process is dependent on CU size and prediction block size, or CU size and prediction mode.
摘要翻译：公开了一种用于YUV422或YUV444格式的视频的视频数据处理的方法和装置。在一个实施例中，对于YUV422格式的2N×2N亮度编码单元（CU），变换处理将对应于2N×2N亮度CU和N×2N色度CU的残留数据划分为平方亮度和色度变换单位（TU）。通过对亮度CU和色度CU应用预测处理来生成与亮度和色度CU相关联的残差数据。变换过程与预测过程相关的预测块大小或预测模式无关。在另一个实施例中，预测过程将CU分成两个预测块。变换处理应用于与色度CU对应的色度残差数据，以形成一个或多个色度TU，其中变换过程取决于CU大小和预测块大小，或CU尺寸和预测模式。

15. 发明授权

US09137544B2 Method and apparatus for derivation of mv/mvp candidate for inter/skip/merge modes 有权
标题翻译：用于导出跨/跳/合并模式的mv / mvp候选的方法和装置
公开(公告)号：US09137544B2
公开(公告)日：2015-09-15
申请号：US13206891
申请日：2011-08-10
申请人： Jian-Liang Lin , Yu-Pao Tsai , Yi-Wen Chen , Yu-Wen Huang , Shaw-Min Lei
发明人： Jian-Liang Lin , Yu-Pao Tsai , Yi-Wen Chen , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N19/52
CPC分类号： H04N19/52
摘要： A method and apparatus for deriving a temporal motion vector predictor (MVP) are disclosed. The MVP is derived for a current block of a current picture in Inter, or Merge, or Skip mode based on co-located reference blocks of a co-located block. The co-located reference blocks comprise an above-left reference block of the bottom-right neighboring block of the co-located block. The reference motion vectors associated with the co-located reference blocks are received and used to derive the temporal MVP. Various configurations of co-located reference blocks can be used to practice the present invention. If the MVP cannot be found based on the above-left reference block, search for the MVP can be continued based on other co-located reference blocks. When an MVP is found, the MVP is checked against the previously found MVP. If the MVP is the same as the previously found MVP, the search for MVP continues.
摘要翻译：公开了用于导出时间运动矢量预测器（MVP）的方法和装置。基于同位置块的同位置参考块，针对Inter或当前图像的当前块导出MVP，或合并或跳跃模式。共同定位的参考块包括同位置块的右下相邻块的左上参考块。与同位置参考块相关联的参考运动矢量被接收并用于导出时间MVP。可以使用共同定位的参考块的各种配置来实施本发明。如果基于上述左参考块不能找到MVP，则可以基于其他同位置参考块继续搜索MVP。当找到MVP时，将针对先前发现的MVP检查MVP。如果MVP与以前发现的MVP相同，则继续搜索MVP。

16. 发明授权

US08837592B2 Method for performing local motion vector derivation during video coding of a coding unit, and associated apparatus 有权
标题翻译：用于在编码单元的视频编码期间执行局部运动矢量导出的方法和相关联的装置
公开(公告)号：US08837592B2
公开(公告)日：2014-09-16
申请号：US12987170
申请日：2011-01-10
申请人： Jian-Liang Lin , Yu-Pao Tsai , Shaw-Min Lei
发明人： Jian-Liang Lin , Yu-Pao Tsai , Shaw-Min Lei
IPC分类号： H04N7/26 , H04N19/51 , H04N19/56
CPC分类号： H04N19/139 , H04N19/513 , H04N19/52 , H04N19/56
摘要： A method for performing local motion vector derivation during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing motion vector prediction of each of the sub-coding units. More particularly, the step of performing motion vector prediction of each of the sub-coding units further includes: deriving a motion vector of a specific sub-coding unit of the sub-coding units by utilizing at least one motion vector of at least one other sub-coding/coding unit. Thus, the method performs motion compensation on the specific sub-coding unit according to the motion vector of the specific sub-coding unit. An associated apparatus is also provided.
摘要翻译：一种用于在编码单元的视频编码期间执行局部运动矢量导出的方法包括：处理编码单元中的多个子编码单元; 以及对每个子编码单元进行运动矢量预测。更具体地，执行每个子编码单元的运动矢量预测的步骤还包括：通过利用至少一个其他的至少一个运动矢量来导出子编码单元的特定子编码单元的运动矢量子编码/编码单元。因此，该方法根据特定子编码单元的运动矢量对特定子编码单元执行运动补偿。还提供了一种相关联的装置。

17. 发明申请

US20140119439A1 METHOD AND APPARATUS OF INTRA MODE CODING 审中-公开
标题翻译：内部模式编码的方法和装置
公开(公告)号：US20140119439A1
公开(公告)日：2014-05-01
申请号：US14123201
申请日：2012-04-18
申请人： Mei Guo , Xun Guo , Shaw-Min Lei
发明人： Mei Guo , Xun Guo , Shaw-Min Lei
IPC分类号： H04N19/593
CPC分类号： H04N19/105 , H04N19/00763 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/463 , H04N19/593 , H04N19/70 , H04N19/91
摘要： Method and apparatus for intra prediction mode coding and decoding are disclosed. In one embodiment, the encoding and decoding process assigns individual indices and codewords to DC mode and Planar mode respectively. The flag is set if the current intra prediction mode is equal to any of one or more neighboring intra prediction modes. Variable length codes are designed for a remaining mode set. If the flag is not set, the currently intra prediction mode is encoded using the variable length codes. In another embodiment, multiple most probable modes are used. If the current intra prediction mode is not equal to any of the multiple most probable modes, the current intra prediction mode is encoded using variable length codes designed for the corresponding remaining modes according the ranking order of the remaining modes.
摘要翻译：公开了用于帧内预测模式编码和解码的方法和装置。在一个实施例中，编码和解码过程分别将各个索引和码字分配给DC模式和平面模式。如果当前帧内预测模式等于一个或多个相邻帧内预测模式中的任何一个，则设置该标志。可变长度代码是为剩余模式设计的。如果标志未被设置，则使用可变长度码对当前帧内预测模式进行编码。在另一个实施例中，使用多个最可能的模式。如果当前帧内预测模式不等于多个最可能模式中的任何一个，则根据剩余模式的排序顺序，使用针对相应的剩余模式设计的可变长度码来对当前帧内预测模式进行编码。

18. 发明申请

US20140092980A1 METHOD AND APPARATUS OF DIRECTIONAL INTRA PREDICTION 审中-公开
标题翻译：方向预测的方法和装置
公开(公告)号：US20140092980A1
公开(公告)日：2014-04-03
申请号：US14123095
申请日：2012-06-20
申请人： Mei Guo , Xin Zhao , Xun Guo , Shaw-Min Lei
发明人： Mei Guo , Xin Zhao , Xun Guo , Shaw-Min Lei
IPC分类号： H04N7/36 , H04N7/34
CPC分类号： H04N19/105 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/593
摘要： A method and apparatus for intra prediction for a current block using directional intra prediction based on neighboring pixels around the current block are disclosed. Embodiment according to the present invention derives the gradient for the current pixel from the neighboring reconstructed pixels along a prediction direction of directional intra prediction. The gradient derived is used to form the final intra prediction. In another embodiment of the present invention, the intra prediction for slant vertical and horizontal directions is derived based on the neighboring reconstructed pixels in a neighboring row adjacent to the top side of the current block and the neighboring reconstructed pixels in a neighboring column adjacent to the left side of the current block.
摘要翻译：公开了一种使用基于当前块周围的相邻像素的使用定向帧内预测的当前块的帧内预测的方法和装置。根据本发明的实施例从沿着定向帧内预测的预测方向的相邻重建像素得到当前像素的梯度。导出的梯度用于形成最终帧内预测。在本发明的另一个实施例中，基于与当前块的顶侧相邻的相邻行中的相邻重建像素和邻近的相邻列中的邻近重建像素，导出用于倾斜垂直和水平方向的帧内预测当前块的左侧。

19. 发明申请

US20140078254A1 Method and Apparatus of Motion and Disparity Vector Prediction and Compensation for 3D Video Coding 审中-公开
标题翻译： 3D视频编码的运动和视差矢量预测和补偿的方法和装置
公开(公告)号：US20140078254A1
公开(公告)日：2014-03-20
申请号：US14115076
申请日：2012-06-08
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： H04N13/00 , H04N7/36
CPC分类号： H04N13/161 , H04N19/513 , H04N19/52 , H04N19/58 , H04N19/593 , H04N19/597 , H04N19/70
摘要： A method and apparatus for deriving MV/MVP (motion vector or motion vector predictor) or DV/DVP (disparity vector or disparity vector predictor) associated Skip mode, Merge mode or Inter mode for a block of a current picture in three-dimensional (3D) video coding are disclosed. The 3D video coding may use temporal prediction and inter-view prediction to exploit temporal and inter-view correlation. MV/DV prediction is applied to reduce bitrate associated with MV/DV coding. The MV/MVP or DV/DVP for a block is derived from spatial candidates, temporal candidates and inter-view candidates. For the inter-view candidate, the position of the inter-view co-located block can be located using a global disparity vector (GDV) or warping the current block onto the co-located picture according to the depth information. The candidate can also be derived as the vector corresponding to warping the current block onto the co-located picture according to the depth information.
摘要翻译：用于导出MV / MVP（运动矢量或运动矢量预测器）或DV / DVP（视差矢量或视差矢量预测器）相关联的跳过模式，合并模式或Inter模式用于三维（ 3D）视频编码被公开。 3D视频编码可以使用时间预测和视角间预测来利用时间和视角间的相关性。应用MV / DV预测来减少与MV / DV编码相关的比特率。用于块的MV / MVP或DV / DVP源自空间候选，时间候选和视角间候选。对于视角间候选，可以使用全局视差向量（GDV）来定位视角间同位序列的位置，或者根据深度信息将当前块变形到同位图片上。还可以将候选者导出为对应于根据深度信息将当前块扭曲到同位图片上的向量。

20. 发明申请

US20130322527A1 Method and Apparatus for Quantization Level Clipping 有权
标题翻译：用于量化级别剪切的方法和装置
公开(公告)号：US20130322527A1
公开(公告)日：2013-12-05
申请号：US13985779
申请日：2012-12-14
申请人： Xun Guo , Shaw-Min Lei
发明人： Xun Guo , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H03M7/3059 , H04N19/126 , H04N19/132 , H04N19/136 , H04N19/146 , H04N19/18 , H04N19/184 , H04N19/44 , H04N19/60
摘要： A method and apparatus for clipping a transform coefficient are disclosed. Embodiments according to the present invention avoid overflow of the quantized transform coefficient by clipping the quantization level adaptively after quantization. In one embodiment, the method comprises generating the quantization level for the transform coefficient of a transform unit by quantizing the transform coefficient according to a quantization matrix and quantization parameter. The clipping condition is determined and the quantization level is clipped according to the clipping condition to generate a clipping-processed quantization level. The clipping condition includes a null clipping condition. The quantization level is clipped to fixed-range represented in n bits for the null clipping condition, where n correspond to 8, 16, or 32. The quantization level may also be clipped within a range from −m to m−1 for the null clipping condition, where m may correspond to 128, 32768, or 2147483648.
摘要翻译：公开了一种用于剪切变换系数的方法和装置。根据本发明的实施例通过量化后自适应地削减量化电平来避免量化变换系数的溢出。在一个实施例中，该方法包括通过根据量化矩阵和量化参数量化变换系数来产生变换单元的变换系数的量化级。确定剪切条件，并根据剪切条件限制量化级别，以产生削波处理的量化级别。剪切条件包括零剪切条件。量化电平被削减到用于零削波条件的n位表示的固定范围，其中n对应于8,16或32。量化电平也可以在-m至m-1的范围内被修剪为零剪切条件，其中m可以对应于128，32768或2147483648。

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