公开(公告)号：US20190075328A1

公开(公告)日：2019-03-07

申请号：US16084778

申请日：2017-03-10

Applicant: MEDIATEK INC.

Inventor： Han HUANG ,  Tzu-Der CHUANG ,  Ching-Yeh CHEN ,  Yu-Wen HUANG

IPC: H04N19/96 ,  H04N19/176 ,  H04N19/70

Abstract: A video data processing method comprises receiving input data associated with a current picture, determining a size for a current coding tree unit (CTU) or a current coding unit (CU) in the current CTU, and if the size, a width, or a height of the current CTU or CU is greater than a threshold, the encoder or decoder splits the current CTU or CU into multiple blocks until each block is not greater than the threshold. The current CTU or CU is processed for prediction or compensation and transform or inverse transform. The current CTU is processed according to CTU-level syntaxes signaled in a video bitstream. The encoder or decoder encodes or decodes the current CTU. The threshold corresponds to a maximum supported transform unit (TU) size for the encoder or decoder.

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：US20180332289A1

公开(公告)日：2018-11-15

申请号：US15964310

申请日：2018-04-27

Applicant: MEDIATEK INC.

Inventor： Han HUANG

IPC: H04N19/13 ,  H04N19/625 ,  H04N19/96 ,  H04N19/174 ,  H04N19/186

Abstract: A method and apparatus for video encoding or decoding performed by a video encoder or a video decoder incorporating advanced multiple transform (AMT) are disclosed. According to this method, a transform set consisting of two type candidates designated as a first type and a second type is determined, where the first type and the second type are different. If AMT is used by the current block, a vertical transform is selected from the transform set and a horizontal transform is selected from the transform set. A transform index, for indicating both vertical transform selection and horizontal transform selection, can be signaled at the encoder side or the transform index is parsed at the decoder side. Another method and apparatus incorporating AMT are also disclosed where the transform set is determined according to the resolution of current MVD.

公开(公告)号：US20200336744A1

公开(公告)日：2020-10-22

申请号：US16918230

申请日：2020-07-01

Applicant: MEDIATEK INC.

Inventor： Han HUANG

IPC: H04N19/13 ,  H04N19/625 ,  H04N19/186 ,  H04N19/174 ,  H04N19/96 ,  H04N19/12 ,  H04N19/176 ,  H04N19/139

Abstract: A method and apparatus for video encoding or decoding performed by a video encoder or a video decoder incorporating advanced multiple transform (AMT) are disclosed. According to this method receives input data associated with a current block, wherein the input data corresponds to a current coefficient block to be processed by an inverse transform process, and determines a default transform type and a single transform set consisting of two transform types. The method then selects a vertical transform and a horizontal transform from the default transform type or the single transform set based on at least a transform selection flag, wherein the transform selection flag is decoded after decoding transform coefficients of the current block, and recovers the current block according to the current coefficient block, a vertical inverse transform associated with the vertical transform and a horizontal inverse transform associated with the horizontal transform.

公开(公告)号：US20190394493A1

公开(公告)日：2019-12-26

申请号：US16558660

申请日：2019-09-03

Applicant: MEDIATEK INC.

Inventor： Han HUANG ,  Shan LIU ,  Chih-Wei HSU

IPC: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196

Abstract: Aspects of the disclosure provide a method of video coding includes receiving input data associated with a first block and a second block of an image frame. The method further includes identifying a reference size and performing a deblocking process if it is determined that the deblocking process is to be performed. The preforming the deblocking process may include processing pixels adjacent to the block boundary using a first set of deblocking filter settings if a first block size of the first block and a second block size of the second block are greater than the reference size, and processing the pixels using a second set of deblocking filter settings if the first block size or the second block size is not greater than the reference size.

公开(公告)号：US20190045183A1

公开(公告)日：2019-02-07

申请号：US15757694

申请日：2016-09-05

Applicant: MEDIATEK INC.

Inventor： Ching-Yeh CHEN ,  Chih-Wei HSU ,  Han HUANG ,  Yu-Wen HUANG

IPC: H04N19/109 ,  H04N19/117 ,  H04N19/176 ,  H04N19/577 ,  H04N19/137

Abstract: A method and apparatus of video coding using adaptive Inter prediction are disclosed. A selected Inter prediction process is determined, wherein the selected Inter prediction process selects an Inter prediction filter from multiple Inter prediction filters for the current block depending on first pixel data comprising neighbouring reconstructed pixels (NRP) of the current block. The selected Inter prediction process may be further determined depending on extra motion compensated pixels (EMCP) around a motion-compensated reference block corresponding to the current block. Distortion between the NRP and EMCP can be used to determine the selected Inter prediction filter. The distortion can be calculated using a sum of absolute differences or squared differences between the NRP and the EMCP.

公开(公告)号：US20180103268A1

公开(公告)日：2018-04-12

申请号：US15729831

申请日：2017-10-11

Applicant: MEDIATEK INC.

Inventor： Han HUANG ,  Shan LIU

IPC: H04N19/593 ,  H04N19/119 ,  H04N19/169 ,  H04N19/96 ,  H04N19/176 ,  H04N19/159 ,  H04N19/91

CPC classification number: H04N19/593 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/91 ,  H04N19/96

Abstract: A video coding system receives input data of a current block split from a parent block, and determines if the parent block is split by horizontal triple tree (TT) partitioning or vertical TT partitioning. A partition type selecting from TT partitioning and binary tree (BT) partitioning and a partition direction selecting from horizontal partitioning and vertical partitioning for splitting the current block are determined by prohibiting a horizontal partitioning type if the parent block is split by horizontal TT partitioning, and prohibiting a vertical partitioning type if the parent block is split by vertical TT partitioning, where the horizontal partitioning type and the vertical partitioning type depend on whether the current block is a middle sub-block in the parent block. The video coding system processes the current block according to the partition type and the partition direction.

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：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。