公开(公告)号：US20210168355A1

公开(公告)日：2021-06-03

申请号：US17139837

申请日：2020-12-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen ,  Weiwei Xu ,  Ting Fu ,  Jiali Fu

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/132 ,  H04N19/119 ,  H04N19/70 ,  H04N19/176

Abstract: Technologies for inter prediction for a block in a video are provided. In one example, a method includes: parsing a bitstream to obtain a syntax element, where the syntax element includes at least an index of optimal candidate motion information of a current block; determining, based on the syntax element, to construct a first list or a second list for the current block, where the first list is a block-based candidate motion information list, and the second list is a subblock-based candidate motion information list; determining optimal motion information from the first list or the second list based on the index; and predicting the current block based on the optimal motion information. In this method, the block-based candidate motion information list and the subblock-based candidate motion information list are distinguished from each other. This effectively reduces transmission costs of the optimal candidate motion information.

公开(公告)号：US20240196003A1

公开(公告)日：2024-06-13

申请号：US18545816

申请日：2023-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang Chen ,  Ting Fu ,  Haitao Yang

IPC: H04N19/52 ,  H04N19/577

CPC classification number: H04N19/52 ,  H04N19/577

Abstract: A motion information candidate list construction method includes: performing a first processing process on all neighboring image blocks of a current image block until a quantity of candidate motion information sets in a candidate motion information list is equal to a first preset value or all the neighboring image blocks are traversed; then traversing at least two extra to be selected motion information sets, and storing, in the candidate motion information list, an extra to be selected motion information set that satisfies a preset condition, until the quantity of candidate motion information sets in the candidate motion information list is equal to a preset quantity value or the extra to be selected motion information sets are traversedextra to be selected motion.

公开(公告)号：US20250024018A1

公开(公告)日：2025-01-16

申请号：US18885854

申请日：2024-09-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen ,  Weiwei Xu ,  Ting Fu ,  Jiali Fu

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: Technologies for inter prediction for a block in a video are provided. In one example, a method includes: when a size of a current block satisfies a preset condition, parsing a bitstream to obtain a syntax element, where the syntax element includes at least an index of optimal candidate motion information of the current block; determining, based on the syntax element, to construct a first list or a second list for the current block, where the first list is a block-based candidate motion information list, and the second list is a subblock-based candidate motion information list; determining optimal motion information from the first list or the second list based on the index; and predicting the current block based on the optimal motion information. In this method, the block-based candidate motion information list and the subblock-based candidate motion information list are distinguished from each other. This effectively reduces transmission costs of the optimal candidate motion information.

公开(公告)号：US12113959B2

公开(公告)日：2024-10-08

申请号：US17139837

申请日：2020-12-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen ,  Weiwei Xu ,  Ting Fu ,  Jiali Fu

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: Technologies for inter prediction for a block in a video are provided. In one example, a method includes: parsing a bitstream to obtain a syntax element, where the syntax element includes at least an index of optimal candidate motion information of a current block; determining, based on the syntax element, to construct a first list or a second list for the current block, where the first list is a block-based candidate motion information list, and the second list is a subblock-based candidate motion information list; determining optimal motion information from the first list or the second list based on the index; and predicting the current block based on the optimal motion information. In this method, the block-based candidate motion information list and the subblock-based candidate motion information list are distinguished from each other. This effectively reduces transmission costs of the optimal candidate motion information.

公开(公告)号：US12015780B2

公开(公告)日：2024-06-18

申请号：US17187423

申请日：2021-02-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ting Fu ,  Huanbang Chen ,  Haitao Yang

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

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

Abstract: This application provides an inter prediction method and apparatus, a video encoder, and a video decoder. The method includes: determining N target picture blocks from M picture blocks in which M neighboring locations of a current picture block are respectively located, where any two of the N target picture blocks are different, M and N are both positive integers, and M is greater than or equal to N; determining candidate motion information of the current picture block based on motion information of the N target picture blocks, and adding the candidate motion information of the current picture block to a motion information candidate list of the current picture block; and performing inter prediction on the current picture block based on the motion information candidate list. In this application, comparison operations during obtaining of the motion information candidate list can be reduced, to improve inter prediction efficiency.

公开(公告)号：US11895319B2

公开(公告)日：2024-02-06

申请号：US17188691

申请日：2021-03-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang Chen ,  Ting Fu ,  Haitao Yang

IPC: H04N19/52 ,  H04N19/577

CPC classification number: H04N19/52 ,  H04N19/577

Abstract: A motion information candidate list construction method includes: performing a first processing process on all neighboring image blocks of a current image block until a quantity of candidate motion information sets in a candidate motion information list is equal to a first preset value or all the neighboring image blocks are traversed; then traversing at least two extra to be selected motion information sets, and storing, in the candidate motion information list, an extra to be selected motion information set that satisfies a preset condition, until the quantity of candidate motion information sets in the candidate motion information list is equal to a preset quantity value or the extra to be selected motion information sets are traversed extra to be selected motion.