公开(公告)号：US20160182884A1

公开(公告)日：2016-06-23

申请号：US14908273

申请日：2014-08-13

Applicant: MEDIATEK INC.

Inventor： Jian-Liang LIN ,  Na ZHANG ,  Yi-Wen CHEN ,  Jicheng AN ,  Yu-Lin CHANG

IPC: H04N13/00 ,  H04N19/136 ,  H04N19/593 ,  H04N19/124 ,  H04N19/44 ,  H04N19/176

CPC classification number: H04N13/161 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N2013/0081

Abstract: A method and apparatus for a three-dimensional or multi-view video encoding or decoding system utilizing unified disparity vector derivation is disclosed. When a three-dimensional coding tool using a derived disparity vector (DV) is selected, embodiments according to the present invention will first obtain the derived DV from one or more neighboring blocks. If the derived DV is available, the selected three-dimensional coding tool is applied to the current block using the derived DV. If the derived DV is not available, the selected three-dimensional coding tool is applied to the current block using a default DV, where the default DV is set to point to an inter-view reference picture in a reference picture list of the current block.

Abstract translation: 公开了一种利用统一视差向量导出的三维或多视点视频编码或解码系统的方法和装置。 当选择使用导出的视差矢量（DV）的三维编码工具时，根据本发明的实施例将首先从一个或多个相邻块获得导出的DV。 如果导出的DV可用，则使用导出的DV将所选择的三维编码工具应用于当前块。 如果导出的DV不可用，则使用默认DV将所选择的三维编码工具应用于当前块，其中默认DV设置为指向当前块的参考图片列表中的视频间参考图片 。

公开(公告)号：US20190058896A1

公开(公告)日：2019-02-21

申请号：US16079166

申请日：2017-02-27

Applicant: MEDIATEK INC.

Inventor： Han HUANG ,  Kai ZHANG ,  Jicheng AN

IPC: H04N19/517 ,  H04N19/61 ,  H04N19/105 ,  H04N19/159 ,  H04N19/30 ,  H04N19/176

Abstract: An encoding or decoding method with affine motion compensation includes receiving input data associated with a current block in a current picture, and deriving a first affine candidate for the current block including three affine motion vectors for predicting motion vectors at control points of the current block if the current block is coded or to be coded in affine Merge mode. The affine motion vectors are derived from three different neighboring coded blocks of the current block. An affine motion model is derived according to the affine motion vectors if the first affine candidate is selected. Moreover, the method includes encoding or decoding the current block by locating a reference block in a reference picture according to the affine motion model. The current block is restricted to be coded in uni-directional prediction if the current block is coded or to be coded in affine Inter mode.

公开(公告)号：US20180131962A1

公开(公告)日：2018-05-10

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 ,  H04N19/186 ,  H04N19/122 ,  H04N19/96

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/122 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/96

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：US20160234510A1

公开(公告)日：2016-08-11

申请号：US15022001

申请日：2015-05-26

Applicant: MEDIATEK INC.

Inventor： Jian-Liang LIN ,  Yi-Wen CHEN ,  Xianguo ZHANG ,  Kai ZHANG ,  Jicheng AN ,  Han HUANG

IPC: H04N19/174 ,  H04N19/50 ,  H04N19/597

CPC classification number: H04N19/174 ,  H04N13/161 ,  H04N19/105 ,  H04N19/119 ,  H04N19/136 ,  H04N19/137 ,  H04N19/182 ,  H04N19/50 ,  H04N19/563 ,  H04N19/597

Abstract: A method of video coding using coding modes including depth-based block partitioning (DBBP) in a multi-view or three-dimensional (3D) video coding system is disclosed. According to the present invention, when DBBP (depth-based block partition) is used to code a current texture coding unit, the DBBP partition mode is signaled so that the decoder does not need to go through complex computations to derive the DBBP partition mode. Various examples of determining the DBBP partition mode are disclosed.

Abstract translation: 公开了一种使用包括在多视点或三维（3D）视频编码系统中的基于深度的块分割（DBBP））的编码模式的视频编码方法。 根据本发明，当使用DBBP（基于深度的块划分）来编码当前的纹理编码单元时，发信号通知DBBP分区模式，使得解码器不需要经过复杂的计算来导出DBBP分区模式。 公开了确定DBBP分区模式的各种示例。

公开(公告)号：US20150382019A1

公开(公告)日：2015-12-31

申请号：US14762861

申请日：2014-04-02

Applicant: MEDIATEK INC.

Inventor： Yi-Wen CHEN ,  Jicheng AN ,  Jian-Liang LIN

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/52 ,  H04N19/463 ,  H04N19/196

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N19/196 ,  H04N19/197 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52

Abstract: A method and apparatus for a three-dimensional encoding or decoding system incorporating view synthesis prediction (VSP) with reduced computational complexity and/or memory access bandwidth are disclosed. The system applies the VSP process to the texture data only and applies non-VSP process to the depth data. Therefore, when a current texture block in a dependent view is coded according to VSP by backward warping the current texture block to the reference picture using an associated depth block and the motion parameter inheritance (MPI) mode is selected for the corresponding depth block in the dependent view, the corresponding depth block in the dependent view is encoded or decoded using non-VSP inter-view prediction based on motion information inherited from the current texture block.

Abstract translation: 公开了一种具有缩减计算复杂度和/或存储器访问带宽的视图合成预测（VSP）的三维编码或解码系统的方法和装置。 系统仅将VSP处理应用于纹理数据，并将非VSP处理应用于深度数据。 因此，当依赖视图中的当前纹理块通过使用相关联的深度块将当前纹理块向后弯曲到参考图片时根据VSP进行编码，并且为相应的深度块选择运动参数继承（MPI）模式 依赖视图中，依赖视图中的相应深度块基于从当前纹理块继承的运动信息使用非VSP视角间预测进行编码或解码。

公开(公告)号：US20150264399A1

公开(公告)日：2015-09-17

申请号：US14656993

申请日：2015-03-13

Applicant: MediaTek Inc.

Inventor： Jian-Liang LIN ,  Yi-Wen CHEN ,  Xianguo ZHANG ,  Kai ZHANG ,  Jicheng AN ,  Han HUANG

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/17 ,  H04N19/186 ,  H04N19/159 ,  H04N19/105

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: A method of signaling depth-based block partitioning (DBBP) for multi-view or three-dimensional (3D) video coding is disclosed. In one embodiment, the DBBP flag is signaled for all candidate prediction modes of the current texture coding unit including a non-2N×N partition mode. The group of candidate prediction modes may consist of 2N×N partition mode and N×2N partition mode. If the DBBP flag indicates the DBBP being used for the current texture coding unit, DBBP encoding is applied to the current texture coding unit or DBBP decoding is applied to one or more PUs associated with the current texture coding unit to recover the current texture coding unit. If the DBBP flag indicates the DBBP being not used for the current texture coding unit, a prediction partition mode is signaled at an encoder side or parsed at a decoder side from a CU (coding unit) level of the bitstream.

Abstract translation: 公开了用于多视图或三维（3D）视频编码的基于深度的块分割（DBBP）的方法。 在一个实施例中，为包括非2N×N分区模式的当前纹理编码单元的所有候选预测模式发信号通知DBBP标志。 候选预测模式组可以由2N×N分区模式和N×2N分区模式组成。 如果DBBP标志指示用于当前纹理编码单元的DBBP，则将DBBP编码应用于当前纹理编码单元，或者将DBBP解码应用于与当前纹理编码单元相关联的一个或多个PU，以恢复当前纹理编码单元 。 如果DBBP标志指示DBBP未被用于当前纹理编码单元，则在编码器侧发信号通知预测分区模式，或者在解码器侧从比特流的CU（编码单元）级别解析。

公开(公告)号：US20180332288A1

公开(公告)日：2018-11-15

申请号：US15777432

申请日：2016-11-25

Applicant: MEDIATEK INC.

Inventor： Shih-Ta HSIANG ,  Jicheng AN

IPC: H04N19/13 ,  H04N19/96 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/91 ,  H04N19/96

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：US20150358599A1

公开(公告)日：2015-12-10

申请号：US14762505

申请日：2014-04-11

Applicant: MEDIATEK INC.

Inventor： Jian-Liang LIN ,  Kai ZHANG ,  Jicheng AN

IPC: H04N13/00 ,  H04N19/517 ,  H04N19/597 ,  G06T7/00

CPC classification number: H04N19/597 ,  G06T7/97 ,  H04N13/161 ,  H04N19/513 ,  H04N19/517 ,  H04N19/52 ,  H04N19/70 ,  H04N2013/0081

Abstract: A method for providing compatible depth-dependent coding and depth-independent coding in three-dimensional video encoding or decoding is disclosed. The compatible system uses a depth-dependency indication to indicate whether depth-dependent coding is enabled for a texture picture in a dependent view. If the depth-dependency indication is asserted, second syntax information associated with a depth-dependent coding tool is used. If the depth-dependent coding tool is asserted, the depth-dependent coding tool is applied to encode or decode the current texture picture using information from a previously coded or decoded depth picture. The syntax information related to the depth-dependency indication can be in Video Parameter Set (VPS), Sequence Parameter Set (SPS), Picture Parameter Set (PPS) or Slice Header.

Abstract translation: 公开了一种用于在三维视频编码或解码中提供兼容的深度相关编码和深度无关编码的方法。 兼容系统使用深度相关性指示来指示依赖视图中纹理图像是否启用与深度相关的编码。 如果深度相关指示被断言，则使用与深度相关的编码工具相关联的第二语法信息。 如果深度依赖编码工具被断言，则使用深度相关编码工具来使用来自先前编码或解码的深度图像的信息对当前纹理图像进行编码或解码。 与深度相关性指示相关的语法信息可以在视频参数集（VPS），序列参数集（SPS），图片参数集（PPS）或片头中。