公开(公告)号：US20220159292A1

公开(公告)日：2022-05-19

申请号：US17590580

申请日：2022-02-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang CHEN ,  Sixin LIN ,  Haitao YANG ,  Shan GAO

IPC: H04N19/52 ,  H04N19/86 ,  H04N19/139 ,  H04N19/176 ,  H04N19/117 ,  H04N19/583 ,  H04N19/119 ,  H04N19/61 ,  H04N19/43

Abstract: The present invention relates to the field of video image processing, and provides a filtering method and an apparatus, to resolve a problem that subjective quality and objective quality of an image deteriorate because filtering processing cannot be performed on internal blocks of a non-translational motion prediction unit.

公开(公告)号：US20210258570A1

公开(公告)日：2021-08-19

申请号：US17242545

申请日：2021-04-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Haitao YANG

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/46 ,  H04N19/176

Abstract: A video picture prediction method and apparatus are provided, to provide a manner of determining a maximum length of a candidate motion vector list corresponding to a subblock merge mode. The method comprises: parsing a first indicator from a bitstream; if the first indicator indicates that a candidate mode used to inter predict the to-be-processed block comprises an affine mode, parsing a second indicator from the bitstream, where the second indicator is used to indicate a maximum length of a first candidate motion vector list, and the first candidate motion vector list is constructed for the to-be-processed block, a subblock merge prediction mode is used for the to-be-processed block; and determining the maximum length of the first candidate motion vector list based on the second indicator.

公开(公告)号：US20210235105A1

公开(公告)日：2021-07-29

申请号：US17196642

申请日：2021-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang CHEN ,  Haitao YANG

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/149

Abstract: This application discloses a motion vector prediction method based on an affine motion model and a device. The method includes: obtaining one spatial reference block of a to-be-processed picture block; determining a plurality of preset subblock locations of the spatial reference block; obtaining motion vectors corresponding to preset pixel locations of the to-be-processed picture block that are extrapolated from motion vectors corresponding to the preset subblock locations; and obtaining motion vectors corresponding to a plurality of subblock locations of the to-be-processed picture block that are interpolated from the motion vectors corresponding to the preset pixel locations. According to this application, prediction accuracy in coding can be improved, and coding efficiency can be improved.

公开(公告)号：US20200252645A1

公开(公告)日：2020-08-06

申请号：US16858222

申请日：2020-04-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Haitao YANG ,  Shan GAO ,  Jiantong ZHOU ,  Shan LIU

IPC: H04N19/52 ,  H04N19/61 ,  H04N19/82

Abstract: A method includes obtaining a first motion vector of a motion compensation unit included in an affine code block. The method also includes determining a second motion vector based on the first motion vector, where a precision of the second motion vector matches a motion vector precision of a storage unit corresponding to the motion compensation unit. The method further includes determining a third motion vector based on the second motion vector, where there is a preset correspondence between the third motion vector and the second motion vector, and the third motion vector is used for subsequent encoding/decoding processing.

公开(公告)号：US20200244983A1

公开(公告)日：2020-07-30

申请号：US16845161

申请日：2020-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang CHEN ,  Sixin LIN ,  Fan LIANG

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/182 ,  H04N19/103 ,  H04N19/147 ,  H04N19/537 ,  H04N19/567 ,  H04N19/105

Abstract: A picture prediction method and a related apparatus are disclosed. A picture prediction method includes: determining K1 pixel samples in a picture block x, and determining a candidate motion information unit set corresponding to each pixel sample in the K1 pixel samples, where the candidate motion information unit set corresponding to each pixel sample includes at least one candidate motion information unit; determining a merged motion information unit set i including K1 motion information units, where each motion information unit in the merged motion information unit set i is selected from at least a part of motion information units in candidate motion information unit sets corresponding to different pixel samples in the K1 pixel samples; and predicting a pixel value of the picture block x by using a non-translational motion model and the merged motion information unit set i.

公开(公告)号：US20190327483A1

公开(公告)日：2019-10-24

申请号：US16460029

申请日：2019-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Haitao YANG ,  Fan LIANG

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/54

Abstract: A picture prediction method includes: determining a reference block of a current block; obtaining location information and motion information of at least two feature points in the reference block; calculating motion information of each subblock in the current block based on the location information and the motion information of the at least two feature points in the reference block; and performing motion compensation prediction on each subblock in the current block based on the motion information of each subblock in the current block, to obtain a prediction block of the current block.

公开(公告)号：US20190268616A1

公开(公告)日：2019-08-29

申请号：US16413329

申请日：2019-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang CHEN ,  Sixin LIN ,  Fan LIANG ,  Haitao YANG

IPC: H04N19/513 ,  H04N19/119 ,  H04N19/537

Abstract: A picture prediction method includes: determining two pixel samples in a current picture block, and determining a candidate motion information unit set corresponding to each of the two pixel samples; determining a merged motion information unit set i including two motion information units; and predicting a pixel value of the current picture block by using an affine motion model and the merged motion information unit set i.

公开(公告)号：US20170195685A1

公开(公告)日：2017-07-06

申请号：US15463850

申请日：2017-03-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang CHEN ,  Sixin LIN ,  Fan LIANG

IPC: H04N19/51 ,  H04N19/105

CPC classification number: H04N19/51 ,  H04N19/103 ,  H04N19/105 ,  H04N19/147 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/537 ,  H04N19/567

Abstract: A picture prediction method and a related apparatus are disclosed. A picture prediction method includes: determining K1 pixel samples in a picture block x, and determining a candidate motion information unit set corresponding to each pixel sample in the K1 pixel samples, where the candidate motion information unit set corresponding to each pixel sample includes at least one candidate motion information unit; determining a merged motion information unit set i including K1 motion information units, where each motion information unit in the merged motion information unit set i is selected from at least a part of motion information units in candidate motion information unit sets corresponding to different pixel samples in the K1 pixel samples; and predicting a pixel value of the picture block x by using a non-translational motion model and the merged motion information unit set i.

公开(公告)号：US20250159236A1

公开(公告)日：2025-05-15

申请号：US19022973

申请日：2025-01-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Haitao YANG ,  Jianle CHEN

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/577 ,  H04N19/70

Abstract: Embodiments of this application relate to the field of video picture coding technologies, and disclose a bidirectional inter prediction method and apparatus, to improve coding efficiency. The method includes: obtaining indication information, where the indication information is used to indicate that second motion information is determined based on first motion information, the first motion information is motion information of a current picture block in a first direction, and the second motion information is motion information of the current picture block in a second direction; obtaining the first motion information; determining the second motion information based on the first motion information; and determining prediction samples of the current picture block based on the first motion information and the second motion information.

公开(公告)号：US20250133218A1

公开(公告)日：2025-04-24

申请号：US18940455

申请日：2024-11-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Haitao YANG ,  Jianle CHEN

IPC: H04N19/159 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176 ,  H04N19/82

Abstract: This application discloses an inter prediction method and apparatus. The method includes: determining a plurality of first picture blocks in a to-be-processed picture block based on a preset picture split width, a preset picture split height, and a width and a height of the to-be-processed picture block; separately performing bi-directional optical flow prediction on the plurality of first picture blocks to obtain a predictor of each first picture block; and obtaining a predictor of the to-be-processed picture block with a combination of the predictors of the plurality of first picture blocks. The apparatus includes a determining module, a prediction module, and a combination module. In this application, complexity of implementing inter prediction can be reduced, and processing efficiency can be improved.