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：US20160295213A1

公开(公告)日：2016-10-06

申请号：US15178004

申请日：2016-06-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinwen Zan ,  Sixin Lin ,  Siwei Ma

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/56

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/433 ,  H04N19/513 ,  H04N19/56

Abstract: An image processing method includes acquiring N pieces of motion information from N adjacent image blocks adjacent to a current image block, where the N adjacent image blocks are in a one-to-one correspondence with the N pieces of motion information, and the N pieces of motion information are in a one-to-one correspondence with the N reference image blocks, determining candidate motion information from the N pieces of motion information according to a preset rule, determining, in the reference image, a location range of a to-be-stored pixel, and storing all pixels in the location range, where the location range covers all pixels of a candidate reference image block, and reading the pixels in the location range, and performing encoding processing on the current image block according to the pixels in the location range.

Abstract translation: 一种图像处理方法包括从N个相邻图像块与N个运动信息一一对应地从与当前图像块相邻的N个相邻图像块中获取N个运动信息，并且N个 运动信息与N个参考图像块一一对应，根据预设的规则从N个运动信息确定候选运动信息，在参考图像中确定一个对应的运动信息的位置范围， 存储像素，并存储位置范围内的所有像素，其中位置范围覆盖候选参考图像块的所有像素，并且读取位置范围中的像素，并根据像素执行对当前图像块的编码处理 在位置范围内。

公开(公告)号：US10116934B2

公开(公告)日：2018-10-30

申请号：US15178004

申请日：2016-06-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinwen Zan ,  Sixin Lin ,  Siwei Ma

IPC: H04N19/105 ,  H04N19/56 ,  H04N19/513 ,  H04N19/433 ,  H04N19/176

Abstract: An image processing method includes acquiring N pieces of motion information from N adjacent image blocks adjacent to a current image block, where the N adjacent image blocks are in a one-to-one correspondence with the N pieces of motion information, and the N pieces of motion information are in a one-to-one correspondence with the N reference image blocks, determining candidate motion information from the N pieces of motion information according to a preset rule, determining, in the reference image, a location range of a to-be-stored pixel, and storing all pixels in the location range, where the location range covers all pixels of a candidate reference image block, and reading the pixels in the location range, and performing encoding processing on the current image block according to the pixels in the location range.

公开(公告)号：US10771813B2

公开(公告)日：2020-09-08

申请号：US15965162

申请日：2018-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sixin Lin ,  Xiang Zhang ,  Siwei Ma ,  Haitao Yang

IPC: H04N19/59 ,  H04N7/24 ,  H04N19/537 ,  H04N19/593 ,  H04N19/513 ,  H04N19/51 ,  H04N19/172 ,  H04N19/105

Abstract: A reference frame decoding method includes obtaining a first reference frame, where the first reference frame is a first picture frame on which decoding reconstruction has been performed or a first interpolated picture frame obtained by pixel interpolation on the first picture frame, parsing a bitstream to obtain mapping parameters, determining to-be-determined coefficients of a preset mapping function according to the mapping parameters, obtaining, in the first reference frame according to the mapping function whose to-be-determined coefficients have been determined, a first pixel unit having a mapping relationship with a second pixel unit of a second reference frame, and assigning a pixel value of the first pixel unit to the second pixel unit.

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：US20180249177A1

公开(公告)日：2018-08-30

申请号：US15965162

申请日：2018-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sixin Lin ,  Xiang Zhang ,  Siwei Ma ,  Haitao Yang

IPC: H04N19/59 ,  H04N19/105 ,  H04N19/172

Abstract: A reference frame decoding method includes obtaining a first reference frame, where the first reference frame is a first picture frame on which decoding reconstruction has been performed or a first interpolated picture frame obtained by pixel interpolation on the first picture frame, parsing a bitstream to obtain mapping parameters, determining to-be-determined coefficients of a preset mapping function according to the mapping parameters, obtaining, in the first reference frame according to the mapping function whose to-be-determined coefficients have been determined, a first pixel unit having a mapping relationship with a second pixel unit of a second reference frame, and assigning a pixel value of the first pixel unit to the second pixel unit.

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.