公开(公告)号：US20240040113A1

公开(公告)日：2024-02-01

申请号：US18361596

申请日：2023-07-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu CHEN ,  Jianhua ZHENG

IPC: H04N19/109 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/70

CPC classification number: H04N19/109 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/70

Abstract: This application provides a video picture decoding and encoding method and a video picture decoding and encoding apparatus. When it is determined that a merge or skip mode is used, if it is determined through decoding that a merge mode with motion vector difference (MMVD) indicator is true, a triangle prediction unit (PU) indicator may not be coded. The triangle PU indicator is coded when it is determined through decoding that the MMVD indicator is false. This reduces a quantity of used coding resources, and can reduce bit overheads of a bitstream.

公开(公告)号：US20210329229A1

公开(公告)日：2021-10-21

申请号：US17339746

申请日：2021-06-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu CHEN ,  Jianhua ZHENG

IPC: H04N19/109 ,  H04N19/176 ,  H04N19/132 ,  H04N19/70 ,  H04N19/52 ,  H04N19/159

Abstract: This application provides a video picture decoding and encoding method and a video picture decoding and encoding apparatus. When it is determined that a merge or skip mode is used, if it is determined through decoding that an MMVD indicator is true, a triangle PU indicator may not be coded. The triangle PU indicator is coded only when it is determined through decoding that the MMVD indicator is false. This reduces a quantity of used coding resources, and can reduce bit overheads of a bitstream.

公开(公告)号：US20210067796A1

公开(公告)日：2021-03-04

申请号：US16949793

申请日：2020-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu CHEN ,  Jicheng AN ,  Jianhua ZHENG

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

Abstract: Embodiments of this application disclose a method for obtaining a motion vector, including: determining a reference block of a to-be-processed block, wherein the reference block and the to-be-processed block have a preset temporal or spatial correlation, the reference block is obtained based on a prediction block of the reference block determined by a refined initial motion vector, the refined initial motion vector is obtained based on an initial motion vector and one or more preset motion vector offsets, and the initial motion vector is obtained based on a predicted motion vector of the reference block; and using the initial motion vector as a predicted motion vector of the to-be-processed block.

公开(公告)号：US20240291965A1

公开(公告)日：2024-08-29

申请号：US18649543

申请日：2024-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu CHEN ,  Huanbang CHEN ,  Haitao YANG ,  Lian ZHANG

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: Embodiments of this application disclose a picture prediction method and apparatus. The picture prediction method includes: determining whether a merge mode is used for a current picture block; when the merge mode is used for the current picture block, determining whether a level-1 merge mode is available for the current picture block; when the level-1 merge mode is unavailable, and a high-layer syntax element corresponding to a first merge mode indicates that the first merge mode is forbidden to be used, determining a second merge mode as a target merge mode used for the current picture block, where the first merge mode and the second merge mode are included in a level-2 merge mode; and predicting the current picture block based on the target merge mode. In the embodiments of this application, redundancy generated in a merge mode determining process can be reduced as much as possible.

公开(公告)号：US20240048686A1

公开(公告)日：2024-02-08

申请号：US18365083

申请日：2023-08-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu CHEN ,  Jianhua ZHENG

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52

CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52

Abstract: Methods and apparatuses for inter prediction are disclosed. The method comprises: constructing a merging candidate list of a current picture block; when a number of merging candidates in the merging candidate list is less than a maximum number of candidates minus N, adding at least one history-based motion vector predictor (HMVP) candidate to the merging candidate list to obtain a new merging candidate list, wherein N is a positive integer; obtaining motion information of the current picture block based on the new merging candidate list; and determining a predicted block of the current picture block based on the motion information of the current picture block.

公开(公告)号：US20210329251A1

公开(公告)日：2021-10-21

申请号：US17360786

申请日：2021-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu CHEN ,  Jianhua ZHENG

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

Abstract: An inter prediction method and apparatus, and a corresponding encoder and decoder are disclosed. The method includes: obtaining an index value of a length of a motion vector difference of the current picture block; determining target length information from a set of candidate length information based on the index value of the length; obtaining the motion vector difference of the current picture block based on the target length information; determining the motion vector target value of the current picture block based on the motion vector difference of the current picture block and the motion vector predictor of the current picture block; and obtaining a prediction block of the current picture block based on the motion vector target value of the current picture block.

公开(公告)号：US20230379490A1

公开(公告)日：2023-11-23

申请号：US18358700

申请日：2023-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu CHEN ,  Jicheng AN ,  Jianhua ZHENG

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

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

Abstract: Embodiments of this application disclose a method for obtaining a motion vector, including: determining a reference block of a to-be-processed block, wherein the reference block and the to-be-processed block have a preset spatial correlation, the reference block is obtained based on a prediction block of the reference block determined by a refined initial motion vector, the refined initial motion vector is obtained based on an initial motion vector and one or more preset motion vector offsets, and the initial motion vector is obtained based on a predicted motion vector of the reference block; and using the initial motion vector as a predicted motion vector of the to-be-processed block.

公开(公告)号：US20230123840A1

公开(公告)日：2023-04-20

申请号：US18066578

申请日：2022-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu CHEN ,  Jianhua Zheng

IPC: H04N19/139 ,  H04N19/147 ,  H04N19/176

Abstract: This application discloses a motion vector obtaining method and apparatus, a computer device, and a storage medium. In the method, an initial motion vector of a to-be-processed picture block is determined by using a location relationship between a reference block and the to-be-processed picture block. When the reference block and the to-be-processed picture block are located in a same coding tree block, a decoder uses an initial motion vector of the reference block as the initial motion vector of the to-be-processed picture block. When the reference block and the to-be-processed picture block are located in different coding tree blocks, the decoder uses a final motion vector of the reference block as the initial motion vector of the to-be-processed picture block.

公开(公告)号：US20160065791A1

公开(公告)日：2016-03-03

申请号：US14837711

申请日：2015-08-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinxin LI ,  Xu CHEN

IPC: H04N5/04 ,  H04N9/802 ,  H04S7/00

CPC classification number: H04N5/04 ,  H04N9/802 ,  H04S7/30 ,  H04S2400/11

Abstract: A sound image play method and apparatus, which relate to the field of multimedia, and can reproduce original stereo effects of any quantity of sound images corresponding to an image. A specific solution is: acquiring image position information; acquiring a sound channel information set according to the image position information; and playing a sound image in accordance with the sound channel information set. The embodiments of the present invention are used for sound image play.

Abstract translation: 一种与多媒体领域相关的声像播放方法和装置，并且可以再现与图像相对应的任何数量的声音图像的原始立体声效果。 一个具体的解决方案是：获取图像位置信息; 根据图像位置信息获取声道信息集; 并根据声道信息设置播放声音图像。 本发明的实施例用于声像播放。

公开(公告)号：US20250030839A1

公开(公告)日：2025-01-23

申请号：US18904980

申请日：2024-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu CHEN ,  Jianhua ZHENG

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52

Abstract: Methods and apparatuses for inter prediction are disclosed. The method comprises: constructing a merging candidate list of a current picture block; when a number of merging candidates in the merging candidate list is less than a maximum number of candidates minus N, adding at least one history-based motion vector predictor (HMVP) candidate to the merging candidate list to obtain a new merging candidate list, wherein N is a positive integer; obtaining motion information of the current picture block based on the new merging candidate list; and determining a predicted block of the current picture block based on the motion information of the current picture block.