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。

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。

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。

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。

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。

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。

公开(公告)号：US20130215959A1

公开(公告)日：2013-08-22

申请号：US13825061

申请日：2011-12-31

申请人： Ching-Yeh Chen ,  Chih-Ming Fu ,  Chia-Yang Tsai ,  Yu-Wen Huang ,  Shaw-Min Lei

发明人： Ching-Yeh Chen ,  Chih-Ming Fu ,  Chia-Yang Tsai ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC分类号： H04N7/26

CPC分类号： H04N19/103 ,  H04N19/117 ,  H04N19/46 ,  H04N19/70 ,  H04N19/82

摘要： Methods for filter-unit based in-loop filtering in a video decoder and encoder are disclosed. In one embodiment, filter parameters are selected from a filter parameter set for each filter based on a filter index. In another embodiment, the picture is partitioned into filter units according to filter unit size, which can be selected between a default size and other size. When other size is selected, the filter unit size may be conveyed using direct size information or ratio information. In another embodiment, a merge flag and a merge index are used to convey filter unit merge information. A method for filter-unit based in-loop filtering in a video encoder for color video is disclosed. In one embodiment, the method incorporates filter syntax in the video bitstream by interleaving the color-component filter syntax for the FUs.

摘要翻译： 公开了一种视频解码器和编码器中基于滤波器单元的环路滤波方法。 在一个实施例中，基于滤波器索引从针对每个滤波器的滤波器参数集中选择滤波器参数。 在另一个实施例中，根据滤波器单元尺寸将图像划分为滤波器单元，其可以在默认尺寸和其它尺寸之间进行选择。 当选择其他尺寸时，可以使用直接尺寸信息或比率信息来传送过滤器单元尺寸。 在另一个实施例中，使用合并标志和合并索引来传送过滤器单元合并信息。 公开了一种用于彩色视频的视频编码器中的基于滤波器单元的环路滤波的方法。 在一个实施例中，该方法通过交织FU的颜色分量滤波器语法来在视频比特流中包含滤波器语法。

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：US20120027084A1

公开(公告)日：2012-02-02

申请号：US13017041

申请日：2011-01-30

申请人： Kai Zhang ,  Shaw-Min Lei

发明人： Kai Zhang ,  Shaw-Min Lei

IPC分类号： H04N7/26

CPC分类号： H04N19/93 ,  H04N19/196 ,  H04N19/463

摘要： A method of converting first data into second data includes: determining a target symbol corresponding to the first data by utilizing a determining unit; and generating the second data corresponding to the determined target symbol. One of the first data and the second data is a syntax element, and the other of the first data and the second data is an entropy-coded result of the syntax element. The target symbol corresponding to the first data is determined adaptively according to occurrence probability of candidate syntax element values of the syntax element.

摘要翻译： 将第一数据转换为第二数据的方法包括：利用确定单元确定与第一数据相对应的目标符号; 以及生成对应于所确定的目标符号的第二数据。 第一数据和第二数据之一是语法元素，第一数据和第二数据中的另一个是语法元素的熵编码结果。 根据语法元素的候选语法元素值的出现概率，自适应地确定对应于第一数据的目标符号。

公开(公告)号：US20120008688A1

公开(公告)日：2012-01-12

申请号：US13039555

申请日：2011-03-03

申请人： Yu-Pao Tsai ,  Jian-Liang Lin ,  Yu-Wen Huang ,  Shaw-Min Lei

发明人： Yu-Pao Tsai ,  Jian-Liang Lin ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC分类号： H04N7/26

CPC分类号： H04N19/577 ,  H04N19/109 ,  H04N19/176 ,  H04N19/52 ,  H04N19/61

摘要： An apparatus and method for motion vector prediction for a current block in a picture are disclosed. In video coding systems, the spatial and temporal redundancy is exploited using spatial and temporal prediction to reduce the information to be transmitted. Motion Vector Prediction (MVP) has been used to further conserve the bitrate associated with motion vector. In conventional temporal MVP, the predictor is often based on a single candidate such as the co-located motion vector in the previous frame/picture. If the co-located motion vector in the previous frame/picture does not exist, the predictor for the current block is not available. A technique for improved MVP is disclosed where the MVP utilized multiple candidates based on co-located motion vectors from future and/or past reference pictures. The candidates are arranged according to priority order to provide better availability of MVP and also to provide more accurate prediction. Furthermore, the MVP technique disclosed can be operated in a closed-loop fashion so that no additional side information or minimum additional side information is required.

摘要翻译： 公开了一种用于图像中当前块的运动矢量预测的装置和方法。 在视频编码系统中，使用空间和时间预测来利用空间和时间冗余来减少要发送的信息。 运动矢量预测（MVP）已被用于进一步节省与运动矢量相关的比特率。 在传统的时间MVP中，预测器通常基于诸如前一帧/图像中的同位置运动矢量的单个候选。 如果前一帧/图像中的同位置运动矢量不存在，则当前块的预测器不可用。 公开了一种用于改进MVP的技术，其中MVP基于来自未来和/或过去的参考图片的同位置运动矢量利用多个候选。 候选人按照优先顺序排列，以提供更好的MVP可用性，并提供更准确的预测。 此外，所公开的MVP技术可以以闭环方式操作，使得不需要额外的辅助信息或最小的附加侧信息。