公开(公告)号：US12284367B2

公开(公告)日：2025-04-22

申请号：US18430963

申请日：2024-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin Zhao ,  Haitao Yang ,  Riyang Zhao ,  Zhongliang Li ,  Lian Zhang

IPC: H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186

Abstract: Embodiments of this application disclose a picture reconstruction method and apparatus for a video picture. The picture reconstruction method includes: obtaining a prediction mode of a current coding unit, and/or obtaining a prediction partition mode of the current coding unit, where the current coding unit includes a luma coding block and a chroma coding block, and the prediction partition mode is a mode of splitting the current coding unit into prediction blocks or prediction units; obtaining a transform block of the current coding unit based on the prediction partition mode and/or the prediction mode; and generating a reconstructed picture block of the current coding unit based on the transform block. According to the method in the embodiments of this application, video coding efficiency can be improved.

公开(公告)号：US12219135B2

公开(公告)日：2025-02-04

申请号：US18360639

申请日：2023-07-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin Zhao ,  Haitao Yang ,  Jianle Chen ,  Lian Zhang

IPC: H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186

Abstract: A picture partitioning method and apparatus are described. The method includes determining a split mode of a current node, where the current node includes a luma block and a chroma block. The method further includes determining, based on the split mode of the current node and a size of the current node, that the chroma block of the current node is not further split. In accordance with the chroma block of the current node not being further split, the method includes splitting the luma block of the current node based on the split mode of the current node. In accordance with the chroma block of the current node not being further split, the method may be used to split only the luma block of the current node, thereby improving encoding and decoding efficiency, reducing a maximum throughput of a codec, and facilitating implementation of the codec.

公开(公告)号：US20250030879A1

公开(公告)日：2025-01-23

申请号：US18908185

申请日：2024-10-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jue Mao ,  Yin Zhao ,  Haitao Yang ,  Lian Zhang

IPC: H04N19/30 ,  H04N19/119 ,  H04N19/17 ,  H04N19/182 ,  H04N19/187 ,  H04N19/91

Abstract: A method for encoding the region enhancement layer includes obtaining reconstructed pixels of a base layer of a target region; inputting the reconstructed pixels into a correction network to obtain correction information of the target region; inputting the correction information and original pixels of the target region into an encoding network to obtain a residual feature map of an enhancement layer of the target region; and encoding the residual feature map to obtain an enhancement layer bitstream of the target region.

公开(公告)号：US12010293B2

公开(公告)日：2024-06-11

申请号：US17451992

申请日：2021-10-22

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: A 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 regular merge mode is available; when the regular merge mode is unavailable, and a high-layer syntax element sps_triangle_enabled_flag corresponding to a triangle partition mode (TPM), indicates that the TPM is forbidden to be used, determining a combined intra and inter prediction (CIIP) mode as a target merge mode used for the current picture block and predicting the current picture block based on the target merge mode.

公开(公告)号：US11924438B2

公开(公告)日：2024-03-05

申请号：US17345295

申请日：2021-06-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin Zhao ,  Haitao Yang ,  Riyang Zhao ,  Zhongliang Li ,  Lian Zhang

IPC: H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/186

Abstract: Embodiments include a picture reconstruction method and apparatus for a video picture. The picture reconstruction method includes: obtaining a prediction mode of a current coding unit, and/or obtaining a prediction partition mode of the current coding unit, where the current coding unit includes a luma coding block and a chroma coding block, and the prediction partition mode is a mode of splitting the current coding unit into prediction blocks or prediction units; obtaining a transform block of the current coding unit based on the prediction partition mode and/or the prediction mode; and generating a reconstructed picture block of the current coding unit based on the transform block. According to the method in the embodiments, video coding efficiency can be improved.

公开(公告)号：US11902506B2

公开(公告)日：2024-02-13

申请号：US17374004

申请日：2021-07-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang Chen ,  Yin Zhao ,  Haitao Yang ,  Lian Zhang

IPC: H04N19/103 ,  H04N19/50 ,  H04N19/96

CPC classification number: H04N19/103 ,  H04N19/50 ,  H04N19/96

Abstract: This application discloses a processing method applied to video encoding or video decoding. The method includes: obtaining size information of a current block; determining a context model index ctxInc of a flag of the current block based on the obtained size information of the current block and a size-based constraint; and performing subsequent processing based on the context model index ctxInc of the flag of the current block. The method can be used to improve coding efficiency.

公开(公告)号：US20220116619A1

公开(公告)日：2022-04-14

申请号：US17561070

申请日：2021-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Chen ,  Haitao Yang ,  Lian Zhang

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46

Abstract: A video encoder, a video decoder, and a corresponding method are provided. The method includes: when a plurality of preset conditions are satisfied, performing bi-directional optical flow BDOF processing on a current picture block, to obtain a predicted sample value of the current picture block, where the plurality of preset conditions include at least a condition that a height H of the current picture block is greater than or equal to 8, a width W of the current picture block is greater than or equal to 8, and a product of the width W of the current picture block and the height H of the current picture block is greater than 128. Thus encoding/decoding complexity and prediction accuracy can be balanced to some extent.

公开(公告)号：US20220109830A1

公开(公告)日：2022-04-07

申请号：US17644603

申请日：2021-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Chen ,  Haitao Yang ,  Lian Zhang

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

Abstract: This application discloses an apparatus for constructing a merge candidate motion information list, including: one or more processors; a non-transitory memory storage comprising instructions which when executed by the one or more processors, cause the apparatus to obtain first motion information and add the first motion information to a first candidate motion information set, to obtain a second candidate motion information set; obtain second motion information based on an HMVP candidate motion information list; when the second motion information is different from all motion information in the second candidate motion information set, add the second motion information to the second candidate motion information set, to obtain a merge candidate motion information list, wherein a quantity of pieces of motion information in the merge candidate motion information set is equal to a preset threshold. Implementing this application reduces complexity in constructing the merge candidate motion information list, and improve coding efficiency.

公开(公告)号：US20210329225A1

公开(公告)日：2021-10-21

申请号：US17356166

申请日：2021-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yin Zhao ,  Lian Zhang ,  Haitao Yang ,  Jianle Chen

IPC: H04N19/105 ,  H04N19/13 ,  H04N19/46 ,  H04N19/176

Abstract: A context modeling method includes: determining, for a current block, whether a first preset condition is satisfied and whether a second preset condition is satisfied, where the first preset condition is a preset condition related to a first neighboring block neighboring to the current block in a first direction, the second preset condition is a preset condition related to a second neighboring block neighboring to the current block in a second direction; determining a subclass index of a context model of a first flag of the current block based on the height and the width of the current block; and determining the context model of the first flag of the current block based on a satisfaction status of the first preset condition, a satisfaction status of the second preset condition, and the subclass index of the context model of the first flag.

公开(公告)号：US12225186B2

公开(公告)日：2025-02-11

申请号：US17644603

申请日：2021-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Chen ,  Haitao Yang ,  Lian Zhang

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

Abstract: This application discloses an apparatus for constructing a merge candidate motion information list, including: one or more processors; a non-transitory memory storage comprising instructions which when executed by the one or more processors, cause the apparatus to obtain first motion information and add the first motion information to a first candidate motion information set, to obtain a second candidate motion information set; obtain second motion information based on an HMVP candidate motion information list; when the second motion information is different from all motion information in the second candidate motion information set, add the second motion information to the second candidate motion information set, to obtain a merge candidate motion information list, wherein a quantity of pieces of motion information in the merge candidate motion information set is equal to a preset threshold. Implementing this application reduces complexity in constructing the merge candidate motion information list, and improve coding efficiency.