公开(公告)号：US20160309186A1

公开(公告)日：2016-10-20

申请号：US15191428

申请日：2016-06-23

Applicant: MediaTek Inc.

Inventor： Yi-Wen Chen ,  Jian-Liang Lin ,  Jicheng An ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/597 ,  H04N19/172 ,  H04N19/61 ,  H04N19/70 ,  H04N19/105 ,  H04N19/176 ,  H04N19/52

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

Abstract: A method for three-dimensional video encoding or decoding includes receiving first data associated with a current block of a current frame corresponding to a current view; determining a derived disparity vector for disparity-vector based motion-compensated-prediction (DV-MCP) of the current block, wherein the derived disparity vector is derived from a constrained neighboring block set of the current block, and the constrained neighboring block set corresponds to one or more spatial neighboring blocks on left side of the current block, one or more collocated blocks of the current block, or both said one or more spatial neighboring blocks on the left side and said one or more collocated blocks of the current block; and applying inter-view predictive encoding or decoding to the first data based on the derived disparity vector.

Abstract translation: 一种用于三维视频编码或解码的方法包括接收与当前视图对应的当前帧的当前块相关联的第一数据; 确定当前块的基于视差矢量的运动补偿预测（DV-MCP）的导出视差向量，其中从当前块的约束相邻块集合导出导出的视差矢量，并且约束相邻块集对应于 到当前块的左侧上的一个或多个空间相邻块，当前块的一个或多个并置块，或者左侧的所述一个或多个空间相邻块以及当前块的所述一个或多个并置块; 以及基于导出的视差向量将视频间预测编码或解码应用于第一数据。

公开(公告)号：US20160205410A1

公开(公告)日：2016-07-14

申请号：US15072807

申请日：2016-03-17

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yu-Pao Tsai ,  Yi-Wen Chen ,  Jicheng An ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/513 ,  H04N19/56 ,  H04N19/583 ,  H04N19/57

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/57 ,  H04N19/583

Abstract: A method and apparatus for deriving a motion vector predictor (MVP) for a motion vector (MV) of a current block of a current picture in Inter, or Merge, or Skip mode. The method selects a co-located block corresponding to a co-located picture and receives one or more reference motion vectors (MVs) of one or more co-located reference blocks associated with the co-located block. The method also determines a search set and determines a search order for the search set, if the search MV corresponding to the given reference list is not available, the search order then searches the search MV corresponding to a reference list different from the given reference list. Finally, the method determines the MVP for the current block based on the search set and the search order and provides the MVP for the current block.

Abstract translation: 一种用于在Inter或Merge或Skip模式中导出当前图像的当前块的运动矢量（MV）的运动矢量预测器（MVP）的方法和装置。 该方法选择与同位置图片相对应的共定位块，并且接收与同位置块相关联的一个或多个同位置参考块的一个或多个参考运动矢量（MV）。 该方法还确定搜索集并确定搜索集的搜索顺序，如果与给定参考列表相对应的搜索MV不可用，则搜索顺序然后搜索与给定参考列表不同的参考列表对应的搜索MV 。 最后，该方法基于搜索集和搜索顺序确定当前块的MVP，并为当前块提供MVP。

公开(公告)号：US10944989B2

公开(公告)日：2021-03-09

申请号：US15561110

申请日：2016-03-31

Applicant: MEDIATEK INC.

Inventor： Yi-Wen Chen ,  Jicheng An ,  Jian-Liang Lin ,  Yu-Wen Huang

IPC: H04N19/593 ,  H04N19/96 ,  H04N19/186 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/122

Abstract: A method and apparatus for Intra prediction of non-square chroma blocks are disclosed. The system uses a block partitioning structure for partitioning a chroma block into one or more final sub-blocks including at least one non-square final sub-block using block partition recursively. The block partition either splits each given block into intermediate sub-blocks using one or more split modes including one binary split mode or applies no splitting to each given block. The block is treated as an initial given block and each intermediate sub-block is treated as one given block in a next recursion. Any given block that is not further split becomes a final sub-block. After the final sub-blocks are determined, non-square Intra prediction is applied to each non-square final sub-block.

公开(公告)号：US10863207B2

公开(公告)日：2020-12-08

申请号：US15777432

申请日：2016-11-25

Applicant: MEDIATEK INC.

Inventor： Shih-Ta Hsiang ,  Jicheng An

IPC: H04N19/96 ,  H04N19/91 ,  H04N19/70

Abstract: A method and apparatus for applying entropy coding to a symbol associated with a block are disclosed. According to the present invention, context-based entropy coding is applied to source symbols associated with blocks having variable block sizes generated by partitioning an initial block using a quadtree structure, a binary-tree structure or a combined quadtree plus binary-tree structure. Contexts according to the present invention are based on some information derived from neighbouring blocks and also based on at least one of the shape, the size and the depth of the current block since the statistics of the symbols associated with the current block may be correlated with how the current block has been partitioned through a tree structure. A current symbol to be encoded or decoded may correspond to split flags and modes associated with the tree structure, skip flag or prediction mode flag.

公开(公告)号：US10142655B2

公开(公告)日：2018-11-27

申请号：US14762888

申请日：2014-04-11

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Kai Zhang ,  Yi-Wen Chen ,  Jicheng An

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/157 ,  H04N19/597 ,  H04N19/105 ,  H04N19/11 ,  H04N19/184 ,  H04N19/159 ,  H04N7/12 ,  H04N19/137

Abstract: A method and apparatus for direct Simplified Depth Coding (dSDC) to derive prediction value directly for each segment without deriving depth prediction samples or depth prediction subsamples. The dSDC method substantially reduces the computations associated with deriving the prediction samples or subsamples and calculating the average of the prediction samples or subsamples by deriving the prediction value directly based on the reconstructed neighboring depth samples. The direct SDC can be applied to derive the two prediction values, P0 and P1 for the two segments of a depth block coded by SDC depth modelling mode 1 (DMM-1).

公开(公告)号：US20150201215A1

公开(公告)日：2015-07-16

申请号：US14411503

申请日：2013-07-25

Applicant: MEDIATEK INC.

Inventor： Yi-Wen Chen ,  Jian-Liang Lin ,  Jicheng An ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/513 ,  H04N19/176

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

Abstract: A method for three-dimensional video encoding or decoding are disclosed. In one embodiment, the method constrains the disparity vector (DV) to generate a constrained DV, wherein horizontal, vertical, or both components of the constrained DV is constrained to be zero or within a range from M to N units of DV precision, and M and N are integers. In another embodiment, a derived DV for DV based motion-compensated-prediction is determined from a constrained neighboring block set of the current block. In yet another embodiment, a derived disparity vector is derived to replace an inter-view Merge candidate if the inter-view Merge candidate of the current block is not available or not valid. In yet another embodiment, a DV difference (DVD) or a motion vector difference (MVD) for the current block is determined according to a DV and the DVD/MVP is constrained to be zero or within a range.

Abstract translation: 公开了一种用于三维视频编码或解码的方法。 在一个实施例中，该方法约束视差矢量（DV）以产生受约束的DV，其中约束DV的水平，垂直或两个分量被约束为零或在从M到N个DV精度的范围内，以及 M和N是整数。 在另一个实施例中，从当前块的约束相邻块集合确定用于基于DV的运动补偿预测的导出DV。 在另一个实施例中，如果当前块的视图间合并候选不可用或不可用，则导出导出的视差向量来替换视角间合并候选。 在另一个实施例中，根据DV确定当前块的DV差（DVD）或运动矢量差（MVD），并且将DVD / MVP约束为零或在一个范围内。