公开(公告)号：US20210136372A1

公开(公告)日：2021-05-06

申请号：US17144976

申请日：2021-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Han GAO ,  Jianle CHEN ,  Semih ESENLIK ,  Zhijie ZHAO ,  Anand Meher KOTRA

IPC: H04N19/119 ,  H04N19/192 ,  H04N19/96 ,  H04N19/176

Abstract: A partitioning method comprises determining whether a current block of a picture is a boundary block and whether the size of the current block is larger than a minimum allowed quadtree leaf node size; and if the current block is the boundary block and the size of the current block is not larger than the minimum allowed quadtree leaf node size (MinQTSize), applying forced binary tree (BT) partitioning to the current block. A method comprises making a determination that a current block of a picture is a boundary block and that a size of the current block is less than or equal to a minimum allowed quadtree (QT) leaf node size (MinQTSize); and applying, in response to the determination, forced binary tree (BT) partitioning to the current block.

公开(公告)号：US20200236359A1

公开(公告)日：2020-07-23

申请号：US16844796

申请日：2020-04-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Han GAO ,  Zhijie ZHAO ,  Semih ESENLIK ,  Anand Meher KOTRA ,  Shan LIU

IPC: H04N19/119 ,  H04N19/96 ,  H04N19/30 ,  H04N19/46 ,  H04N19/172

Abstract: An apparatus and a method for image coding with boundary partitioning processing are disclosed. In image coding, and particularly in video coding, images are typically split into smaller blocks or units that are then processed. Effective splitting or partitioning has an important role in effective image coding. The apparatus and method use a particular boundary partitioning processing for improving splitting, which can be used in improving compression performance. The boundary partitioning reduces unnecessary partitioning on the frame boundary and reduces complexity of a forced partitioning procedure.

公开(公告)号：US20240259569A1

公开(公告)日：2024-08-01

申请号：US18607876

申请日：2024-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Biao WANG ,  Anand Meher KOTRA ,  Semih ESENLIK ,  Jianle CHEN ,  Han GAO

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/117 ,  H04N19/139 ,  H04N19/61

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/117 ,  H04N19/139 ,  H04N19/61

Abstract: The present disclosure provides a coding method, wherein the coding includes decoding or encoding, and the method comprises determining whether a current coding unit is predicted by application of combined inter-intra prediction (CHIP); and in response to determining that the current coding unit is predicted by application of CIIP, setting a boundary strength of a boundary of the current coding unit to a first value.

公开(公告)号：US20230130158A1

公开(公告)日：2023-04-27

申请号：US18080903

申请日：2022-12-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Han GAO ,  Semih ESENLIK ,  Biao WANG ,  Anand Meher KOTRA ,  Jianle CHEN

IPC: H04N19/513 ,  H04N19/176

Abstract: The present disclosure provides methods and devices of construct a candidate merge list for Intra block copy (IBC) mode, the method comprising: inserting a block vector of a left neighboring block of a current block into an initial merge list, when the left neighboring block is available and the left neighboring block is using IBC mode; inserting a block vector of an above neighboring block of the current block into the initial merge list, when the above neighboring block is available, the above neighboring block is using IBC mode and the block vector of the above neighboring block is not same as the block vector of the left neighboring block; inserting a block vector of the last candidate in a history based motion vector predictor (HMVP) into the initial merge list; obtaining a block vector of the current block according to the initial merge list.

公开(公告)号：US20230082783A1

公开(公告)日：2023-03-16

申请号：US17946929

申请日：2022-09-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Biao WANG ,  Semih ESENLIK ,  Elena Alexandrovna ALSHINA ,  Anand Meher KOTRA ,  Han GAO

IPC: H04N19/105 ,  H04N19/169 ,  H04N19/174

Abstract: A system and method of decoding of a video or picture bitstream implemented by a decoding device are described. The bitstream can include data representing a current video coding layer. Furthermore, when determining that the current video coding layer is the only one layer in the bitstream, the method can include using the identifier of a NAL unit of the current video coding layer as the identifier of the current video coding layer.

公开(公告)号：US20230019654A1

公开(公告)日：2023-01-19

申请号：US17876317

申请日：2022-07-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Han GAO ,  Jianle CHEN ,  Semih ESENLIK ,  Zhijie ZHAO ,  Anand Meher KOTRA

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/192 ,  H04N19/96

Abstract: A partitioning method comprises determining whether a current block of a picture is a boundary block and whether the size of the current block is larger than a minimum allowed quadtree leaf node size; and if the current block is the boundary block and the size of the current block is not larger than the minimum allowed quadtree leaf node size (MinQTSize), applying forced binary tree (BT) partitioning to the current block. A method comprises making a determination that a current block of a picture is a boundary block and that a size of the current block is less than or equal to a minimum allowed quadtree (QT) leaf node size (MinQTSize); and applying, in response to the determination, forced binary tree (BT) partitioning to the current block.

公开(公告)号：US20220060754A1

公开(公告)日：2022-02-24

申请号：US17516308

申请日：2021-11-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anand Meher KOTRA ,  Semih ESENLIK ,  Zhijie ZHAO

IPC: H04N19/86 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

Abstract: A system and method for processing a video stream are provided. When coding or decoding a video stream a de-blocking filtering may be applied for reducing discontinuities caused by use of a block-based video coding. The de-blocking filtering is performed using a filter grid. The size of the filter grid is chosen adaptively based on the processing parameters. The adaptive size of the filtering grid is determined based on the number of samples used and modified in de-blocking filtering of an edge of a coding block. The filtering grid may be used both for vertical and horizontal edge filtering.

公开(公告)号：US20220007020A1

公开(公告)日：2022-01-06

申请号：US17447340

申请日：2021-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Biao WANG ,  Semih ESENLIK ,  Anand Meher KOTRA ,  Han GAO ,  Jianle CHEN

IPC: H04N19/119 ,  H04N19/159 ,  H04N19/176

Abstract: The present disclosure provides a method of video coding implemented in a decoding device or an encoding device, the method comprising: determining a block size of a current coding block, the current coding block being coded in intra prediction mode; selecting, based on the determined block size of the current coding block, a sub-partitioning rule that determines a number of sub-partitions and a partition direction into which the current coding block is to be divided; and dividing the current coding block into sub-partitions based on the selected sub-partitioning rule.

公开(公告)号：US20210400304A1

公开(公告)日：2021-12-23

申请号：US17446849

申请日：2021-09-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Han GAO ,  Semih ESENLIK ,  Biao WANG ,  Anand Meher KOTRA ,  Jianle CHEN

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/132 ,  H04N19/105 ,  H04N19/186 ,  H04N19/184 ,  H04N19/159

Abstract: The present disclosure provides a method of video coding implemented by a decoding device or an encoding device for optimum usage of a hardware reference memory buffer, wherein a group of reference coding tree units (CTUs) for Intra Block Copy (IBC) mode prediction of a current block of a current CTU is determined based on a size of the current CTU, and wherein the reference samples of the current block are obtained from the group of reference CTUs.

公开(公告)号：US20210289222A1

公开(公告)日：2021-09-16

申请号：US17333351

申请日：2021-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Biao WANG ,  Semih ESENLIK ,  Jianle CHEN ,  Anand Meher KOTRA ,  Han GAO

IPC: H04N19/50 ,  H04N19/159 ,  H04N19/46 ,  H04N19/70 ,  H04N19/176

Abstract: The present disclosure relates to the field of picture processing. Especially, the disclosure deals with improving the prediction of a block of a picture when decoding or encoding. A method of coding a block of a picture, comprising: obtaining an indication parameter for a current coding block. The indication parameter represents whether a multi-hypothesis prediction is applied to the current coding block. When the indication parameter represents that the multi-hypothesis prediction is applied to the current coding block, coding the current coding block according to a planar mode.