公开(公告)号：US11245932B2

公开(公告)日：2022-02-08

申请号：US17066936

申请日：2020-10-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhao Wang ,  Siwei Ma ,  Shan Gao ,  Haitao Yang

IPC: H04N19/96 ,  H04N19/176 ,  H04N19/119 ,  H04N19/157 ,  H04N19/167

Abstract: A decoding method includes: parsing a data stream, and if partitioning an image block with a size of 2N×2N using a quadtree partition pattern is allowed, processing a 2N×N first subimage block and a 2N×N second subimage block or an N×2N first subimage block and an N×2N second subimage block in a constraint subimage processing mode, wherein an image block partition pattern obtained for the partitioned second subimage block and the partitioned first subimage block is different from an image block partition pattern obtained after the 2N×2N image block is partitioned using the quadtree partition pattern, where the 2N×N first subimage block and the 2N×N second subimage block or the N×2N first subimage block and the N×2N second subimage block are obtained by partitioning the image block with the size of 2N×2N.

公开(公告)号：US10812835B2

公开(公告)日：2020-10-20

申请号：US16233932

申请日：2018-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhao Wang ,  Siwei Ma ,  Shan Gao ,  Haitao Yang

IPC: H04N19/96 ,  H04N19/176 ,  H04N19/119 ,  H04N19/157 ,  H04N19/167

Abstract: A decoding method includes: parsing a data stream, and if partitioning an image block with a size of 2N×2N using a quadtree partition pattern is allowed, processing a 2N×N first subimage block and a 2N×2N second subimage block or an N×2N first subimage block and an N×2N second subimage block in a constraint subimage processing mode, wherein an image block partition pattern obtained for the partitioned second subimage block and the partitioned first subimage block is different from an image block partition pattern obtained after the 2N×2N image block is partitioned using the quadtree partition pattern, where the 2N×N first subimage block and the 2N×N second subimage block or the N×2N first subimage block and the N×2N second subimage block are obtained by partitioning the image block with the size of 2N×2N.

公开(公告)号：US10523965B2

公开(公告)日：2019-12-31

申请号：US15860531

申请日：2018-01-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhao Wang ,  Siwei Ma ,  Zhuoyi Lv ,  Haitao Yang

IPC: H04N19/56 ,  H04N19/523 ,  H04N19/182

Abstract: Embodiments of the present disclosure disclose a video coding method which includes: obtaining a current picture, motion vector precision of the current picture according to the current picture, where the motion vector precision includes a search step size set, and each search step size in the search step size set is less than a pixel unit; obtaining a current block and a reference picture of the current block; determining a search start point in the reference picture, and searching, from the search start point, for a target integer pixel by using a pixel unit as a search step size; searching, from the target integer pixel, for a match block of the current block according to the motion vector precision; obtaining motion vector information and a prediction residual signal; and the reference picture, the motion vector information, and the prediction residual signal into a bitstream.

公开(公告)号：US20180131960A1

公开(公告)日：2018-05-10

申请号：US15860531

申请日：2018-01-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhao Wang ,  Siwei Ma ,  Zhuoyi Lv ,  Haitao Yang

IPC: H04N19/56 ,  H04N19/523

CPC classification number: H04N19/56 ,  H04N19/109 ,  H04N19/136 ,  H04N19/139 ,  H04N19/14 ,  H04N19/182 ,  H04N19/523 ,  H04N19/533 ,  H04N19/57

Abstract: Embodiments of the present disclosure disclose a video coding method which includes: obtaining a current picture, motion vector precision of the current picture according to the current picture, where the motion vector precision includes a search step size set, and each search step size in the search step size set is less than a pixel unit; obtaining a current block and a reference picture of the current block; determining a search start point in the reference picture, and searching, from the search start point, for a target integer pixel by using a pixel unit as a search step size; searching, from the target integer pixel, for a match block of the current block according to the motion vector precision; obtaining motion vector information and a prediction residual signal; and the reference picture, the motion vector information, and the prediction residual signal into a bitstream.