公开(公告)号：US20250055982A1

公开(公告)日：2025-02-13

申请号：US18918992

申请日：2024-10-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/13 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/593

Abstract: Devices and methods for Intra prediction are provided. The method includes: obtaining a value of an indication information of a current block. When the value of the indication information indicates the intra prediction mode of the current block is not comprised in the set of most probable modes, deriving the intra prediction mode IntraPredModeY of the current block by the following ordered steps: i. IntraPredModeY is set equal to intra_luma_mpm_remainder[xCb][yCb], ii. The value of IntraPredModeY is incremented by one. The method can improve the efficiency to determine the intra prediction mode of the current block.

公开(公告)号：US20240414329A1

公开(公告)日：2024-12-12

申请号：US18802109

申请日：2024-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196

Abstract: A method of coding implemented by a decoding device, comprising: setting a value of candidate intra prediction mode of a current block to be a default value, wherein the current block is predicted using an intra prediction mode but not a Matrix-based Intra Prediction (MIP) mode and a neighboring block adjacent to the current block is used to derive the value of candidate intra prediction mode of the current block and is predicted using MIP mode; obtaining a value of the intra prediction mode of the current block according to the default value.

公开(公告)号：US20240205397A1

公开(公告)日：2024-06-20

申请号：US18589185

申请日：2024-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

CPC classification number: H04N19/117 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

Abstract: Embodiments of the present disclosure relate to the field of picture processing. Especially, the embodiments are directed to improving the deblocking filter of an image coding device. During the deblocking, at most a number MA of sample values of the first coding block adjacent to the block edge are modified and at most a number MB of sample values of the second coding block adjacent to the block edge are modified; or at most a number MA of sample values of the second coding block adjacent to the block edge are modified and at most a number MB of sample values of the first coding block adjacent to the block edge are modified, MA≠MB.

公开(公告)号：US20240137499A1

公开(公告)日：2024-04-25

申请号：US18400754

申请日：2023-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/107 ,  H04N19/119 ,  H04N19/176

CPC classification number: H04N19/107 ,  H04N19/119 ,  H04N19/176

Abstract: The present disclosure provides methods and devices of processing a block according to a merge candidate list, the method comprising: constructing a first list according to motion information of neighboring blocks of a current block; obtaining prediction information of the current block; when the prediction information of the current block indicates that a sub-block prediction is applied to the current block, obtaining a uni-prediction candidate for the current block according to the first list; using, the uni-prediction candidate for the current block to perform inter prediction of the current block. According to embodiment of the present disclosure, the regular merge list can be directly used and there is no need to explicitly generate the uni-prediction merge candidate list for sub-block prediction.

公开(公告)号：US20220295048A1

公开(公告)日：2022-09-15

申请号：US17830782

申请日：2022-06-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

Abstract: Parallel processing of inter prediction of a current coding block and preceding coding blocks depending on the partition depth of the current coding block is disclosed. An apparatus comprises a processing circuitry configured for: obtaining a value of a parameter for the current coding block, wherein the value of the parameter indicates a partition depth of the current coding block, and performing an inter prediction process for the current coding block; wherein no Motion Vector Predictor candidate comprising a motion vector of a coded block of the picture that is not spatially adjacent to the current coding block for the current coding block is used in the inter prediction process or a merge mode inter prediction process comprised in the inter prediction process, when the value of the parameter for the current coding block is greater than a threshold.

公开(公告)号：US20220191504A1

公开(公告)日：2022-06-16

申请号：US17681066

申请日：2022-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/137 ,  H04N19/132 ,  H04N19/105 ,  H04N19/176

Abstract: A motion information storing method comprises: determining a distance between a sample set in the current block and the common boundary; and comparing the distance with a threshold to determine whether third motion information is stored for the sample set, wherein the third motion information is derived by the first motion information and the second motion information.

公开(公告)号：US20220182628A1

公开(公告)日：2022-06-09

申请号：US17682893

申请日：2022-02-28

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/184 ,  H04N19/96

Abstract: The present disclosure provides apparatuses and methods for splitting an image into coding units. An image is divided into coding tree units (CTUs) which are hierarchically partitioned. Hierarchical partitioning includes multi-type partitioning such as binary tree or quad tree splitting. For CTUs completely within the image and CTUs on the boundary, respective multi-type partition depths are chosen. The present disclosure provides for multi-type partitioning flexibility in a boundary portion of the image.

公开(公告)号：US20220159263A1

公开(公告)日：2022-05-19

申请号：US17588854

申请日：2022-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/132 ,  H04N19/159 ,  H04N19/186 ,  H04N19/176

Abstract: A method of coding implemented by a decoding device, comprising obtaining a video bitstream; decoding the video bitstream to obtain an initial intra prediction mode value for chroma component of a current coding block; determining whether a ratio between a width for luma component of the current coding block and a width for chroma component of the current coding block is equal to a threshold or not; obtaining a mapped intra prediction mode value for chroma component of the current coding block according to a predefined mapping relationship and the initial intra prediction mode value, when it's determined that the ratio is equal to the threshold; obtaining a prediction sample value for chroma component of the current coding block according to the mapped intra prediction mode value.

公开(公告)号：US20210360234A1

公开(公告)日：2021-11-18

申请号：US17232946

申请日：2021-04-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/11 ,  H04N19/167 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/105 ,  H04N19/13 ,  H04N19/159 ,  H04N19/186

Abstract: Devices and methods for Intra prediction are provided. The method includes: obtaining a value of an indication information of a current block. When the value of the indication information indicates the intra prediction mode of the current block is not comprised in the set of most probable modes, deriving the intra prediction mode IntraPredModeY of the current block by the following ordered steps: i. IntraPredModeY is set equal to intra_luma_mpm_remainder[xCb][yCb], ii. The value of IntraPredModeY is incremented by one. The method can improve the efficiency to determine the intra prediction mode of the current block.

公开(公告)号：US20210344915A1

公开(公告)日：2021-11-04

申请号：US17369024

申请日：2021-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/196 ,  H04N19/159

Abstract: The present disclosure provides methods and devices for intra prediction. A method of coding implemented by a decoding device, comprising: setting a value of candidate intra prediction mode of a current block to be a default value, wherein the current block is predicted using an intra prediction mode but not a Matrix-based Intra Prediction (MIP) mode and a neighboring block adjacent to the current block is used to derive the value of candidate intra prediction mode of the current block and is predicted using MIP mode; obtaining a value of the intra prediction mode of the current block according to the default value