公开(公告)号：US11496754B2

公开(公告)日：2022-11-08

申请号：US17366735

申请日：2021-07-02

Applicant: Zhejiang University ,  Huawei Technologies Co., Ltd.

Inventor： Lu Yu ,  Ye-Kui Wang ,  Yuqun Fan ,  Hualong Yu ,  Yin Zhao ,  Xiangyu Lin ,  Haitao Yang

IPC: H04N19/184 ,  H04N19/136 ,  H04N19/172 ,  H04N19/124

Abstract: A decoding method includes obtaining an identifier from a bitstream, where the identifier indicates a minimum decoding time interval k between library pictures that is allowed in the bitstream, obtaining, when parsing the bitstream, a decoding moment ti of a current decoded picture and a decoding moment tj of a first decoded picture that is closest to the current decoded picture and that references a new library picture when the current decoded picture is decoded by referencing a library picture, where the new library picture is a library picture that is not decoded or needs to be re-decoded when the first decoded picture is decoded, and determining a preset quantity of library pictures as candidate reference pictures of the current decoded picture based on a relationship between k and a difference between ti and tj.

公开(公告)号：US20210344903A1

公开(公告)日：2021-11-04

申请号：US17370120

申请日：2021-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Yu ,  Ye-Kui Wang ,  Hualong Yu ,  Yin Zhao ,  Yuqun Fan ,  Xiaoding Gao ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/46 ,  H04N19/184 ,  H04N19/172

Abstract: A video encoding method, a video decoding method, an apparatus, a device, and a storage medium include parsing a first flag from the video bitstream when a video bitstream is allowed to be decoded by referencing a library picture corresponding to a library picture bitstream, using a value of a target parameter of the video bitstream as a value of a target parameter of the library picture bitstream referenced by the video bitstream when a value of the first flag is a first value, and reconstructing, based on the value of the target parameter of the library picture bitstream referenced by the video bitstream and the library picture bitstream referenced by the video bitstream to obtain the library picture corresponding to the library picture bitstream referenced by the video bitstream.

公开(公告)号：US11638003B2

公开(公告)日：2023-04-25

申请号：US17370120

申请日：2021-07-08

Applicant: Zhejiang University ,  Huawei Technologies Co., Ltd.

Inventor： Lu Yu ,  Ye-Kui Wang ,  Hualong Yu ,  Yin Zhao ,  Yuqun Fan ,  Xiaoding Gao ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/172 ,  H04N19/184 ,  H04N19/46

Abstract: A video encoding method, a video decoding method, an apparatus, a device, and a storage medium include parsing a first flag from the video bitstream when a video bitstream is allowed to be decoded by referencing a library picture corresponding to a library picture bitstream, using a value of a target parameter of the video bitstream as a value of a target parameter of the library picture bitstream referenced by the video bitstream when a value of the first flag is a first value, and reconstructing, based on the value of the target parameter of the library picture bitstream referenced by the video bitstream and the library picture bitstream referenced by the video bitstream to obtain the library picture corresponding to the library picture bitstream referenced by the video bitstream.

公开(公告)号：US20210337220A1

公开(公告)日：2021-10-28

申请号：US17366735

申请日：2021-07-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Yu ,  Ye-Kui Wang ,  Yuqun Fan ,  Hualong Yu ,  Yin Zhao ,  Xiangyu Lin ,  Haitao Yang

IPC: H04N19/184 ,  H04N19/172 ,  H04N19/136

Abstract: A decoding method includes obtaining an identifier from a bitstream, where the identifier indicates a minimum decoding time interval k between library pictures that is allowed in the bitstream, obtaining, when parsing the bitstream, a decoding moment ti of a current decoded picture and a decoding moment tj of a first decoded picture that is closest to the current decoded picture and that references a new library picture when the current decoded picture is decoded by referencing a library picture, where the new library picture is a library picture that is not decoded or needs to be re-decoded when the first decoded picture is decoded, and determining a preset quantity of library pictures as candidate reference pictures of the current decoded picture based on a relationship between k and a difference between ti and tj.