公开(公告)号：US11838520B2

公开(公告)日：2023-12-05

申请号：US17360805

申请日：2021-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Johannes Sauer ,  Ye-Kui Wang ,  Zhijie Zhao ,  Semih Esenlik

IPC: H04N19/174 ,  H04N19/119 ,  H04N19/172

CPC classification number: H04N19/174 ,  H04N19/119 ,  H04N19/172

Abstract: A device for encoding and a device for decoding a picture, respectively, and corresponding methods relating to the field of picture coding are provided. The devices are respectively configured to partition the picture into one or more slices, each slice comprising one or more tiles, and one or more slices holding coded picture data. Further, the devices are configured to encode the one or more slices holding coded picture data, thereby improving coding and decoding of pictures with uncoded buffer space.

公开(公告)号：US11831816B2

公开(公告)日：2023-11-28

申请号：US17470363

申请日：2021-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  Jianle Chen ,  FNU Hendry

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/52 ,  H04N19/105 ,  H04N19/137 ,  H04N19/46 ,  H04N19/119 ,  H04N19/172 ,  H04N19/174 ,  H04N19/70 ,  H04N19/96 ,  H04N19/82 ,  H04N19/86 ,  H04N19/184 ,  H04N19/593

CPC classification number: H04N19/117 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/46 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: A video coding mechanism includes receiving a bitstream comprising a current picture including a sub-picture coded according to inter-prediction. Coded blocks contain candidate motion vectors for a current block of the sub-picture. The coded blocks include a collocated block from a different picture. A candidate list of candidate motion vectors for the current block are derived by excluding collocated motion vectors from the candidate list when the collocated motion vectors are included in the collocated block, when the collocated motion vectors point outside of the sub-picture, and when a flag is set to indicate the sub-picture is treated as a picture. A current motion vector for the current block is determined from the candidate list of candidate motion vectors. The current block is decoded based on the current motion vector. The current block is forwarded for display as part of a decoded video sequence.

公开(公告)号：US11800130B2

公开(公告)日：2023-10-24

申请号：US17701407

申请日：2022-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang

IPC: H04N7/12 ,  H04N19/46 ,  H04N19/102 ,  H04N19/172 ,  H04N19/174 ,  H04N19/169 ,  H04N19/105 ,  H04N19/132 ,  H04N19/30 ,  H04N19/70

CPC classification number: H04N19/46 ,  H04N19/102 ,  H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/188 ,  H04N19/30 ,  H04N19/70

Abstract: A video coding mechanism is disclosed. The mechanism includes encoding a coded picture into a bitstream. A current supplemental enhancement information (SEI) message that comprises a decoding unit (DU) hypothetical reference decoder (HRD) parameters present flag (du_hrd_params_present_flag) is also encoded into the bitstream. The du_hrd_params_present_flag specifies whether DU level HRD parameters are present in the bitstream. A set of bitstream conformance tests is performed on the bitstream based on the current SEI message. The bitstream is stored for communication toward a decoder.

公开(公告)号：US20230328291A1

公开(公告)日：2023-10-12

申请号：US18334956

申请日：2023-06-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye-Kui Wang

IPC: H04N19/70 ,  H04N19/597 ,  H04N19/103 ,  H04N19/136 ,  H04N19/184

CPC classification number: H04N19/70 ,  H04N19/597 ,  H04N19/103 ,  H04N19/136 ,  H04N19/184

Abstract: A decoding method implemented by a decoder. The method includes receiving an encoded bitstream including a parameter set disposed outside a coded representation of a first component and/or a second component of three dimensional (3D) content, the parameter set including a numerical value of a plurality of numerical values that correspond to a plurality of different video standards, the numerical value identifying which video codec is used for coding the first component or the second component of the 3D content, and decoding the encoded bitstream.

公开(公告)号：US20230319299A1

公开(公告)日：2023-10-05

申请号：US18328040

申请日：2023-06-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  Fnu Hendry

IPC: H04N19/436 ,  H04N19/119 ,  H04N19/132 ,  H04N19/174 ,  H04N19/169 ,  H04N19/44 ,  H04N19/137 ,  H04N19/184 ,  H04N19/593

CPC classification number: H04N19/436 ,  H04N19/119 ,  H04N19/132 ,  H04N19/174 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/137 ,  H04N19/184 ,  H04N19/593 ,  H04N19/188 ,  H04N19/176

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising one or more sub-pictures partitioned from a picture such that each sub-picture includes a sub-picture width that is an integer multiple of a coding tree unit (CTU) size when the each sub-picture includes a right boundary that does not coincide with a right boundary of the picture. The bitstream is parsed to obtain the one or more sub-pictures. The one or more sub-pictures are decoded to create a video sequence. The video sequence is forwarded for display.

公开(公告)号：US20230283809A1

公开(公告)日：2023-09-07

申请号：US18171619

申请日：2023-02-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  FNU Hendry ,  Jianle Chen

IPC: H04N19/96 ,  H04N19/184 ,  H04N19/70 ,  H04N19/119 ,  H04N19/174 ,  H04N19/176 ,  H04N19/169 ,  H04N19/46

CPC classification number: H04N19/96 ,  H04N19/184 ,  H04N19/70 ,  H04N19/119 ,  H04N19/174 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/46

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream including a first slice of a coded image. The coded image is associated with a picture parameter set (PPS) in the bitstream. The first slice is associated with a slice header in the bitstream. A list of identifiers (IDs) is parsed from the PPS. A first ID is parsed from the slice header of the first slice. The first ID matches one of the IDs in the list of IDs in the PPS. A list of tiles coded in the first slice is determined based on the first ID. The first slice is determined to generate a reconstructed sub-image of the coded image.

公开(公告)号：US11729384B2

公开(公告)日：2023-08-15

申请号：US17362279

申请日：2021-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： FNU Hendry ,  Ye-Kui Wang

IPC: H04N19/119 ,  H04N19/174 ,  H04N19/184 ,  H04N19/46

CPC classification number: H04N19/119 ,  H04N19/174 ,  H04N19/184 ,  H04N19/46

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a sub-bitstream including: a sub-picture of a picture partitioned into a plurality of slices including a first slice, a parameter set associated with the picture and the sub-picture, and a slice header associated with the first slice. The parameter set is parsed to obtain an identifier and a length of a slice address of the first slice. A slice address for the first slice is determined from the slice header based on the identifier and the length of the slice address. The sub-bitstream is decoded to create a video sequence of sub-pictures including the first slice. The video sequence of sub-pictures is forwarded for display.

公开(公告)号：US20230247208A1

公开(公告)日：2023-08-03

申请号：US18298201

申请日：2023-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： FNU Hendry ,  Ye-Kui Wang

IPC: H04N19/174 ,  H04N19/117 ,  H04N19/134 ,  H04N19/172 ,  H04N19/136 ,  H04N19/159

CPC classification number: H04N19/174 ,  H04N19/117 ,  H04N19/134 ,  H04N19/172 ,  H04N19/136 ,  H04N19/159

Abstract: A video coding mechanism is disclosed. The mechanism includes partitioning a picture into a plurality of tiles. A number of the tiles are included in a tile group. A flag is also encoded into a parameter set of a bitstream. The flag is set to a first value when the tile group is a raster scan tile group and a second value when the tile group is a rectangular tile group. The tiles are encoded into the bitstream based on the tile group. The bitstream is stored for communication toward a decoder.

公开(公告)号：US11653005B2

公开(公告)日：2023-05-16

申请号：US17348719

申请日：2021-06-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： FNU Hendry ,  Ye-Kui Wang

IPC: H04N19/174 ,  H04N19/117 ,  H04N19/134 ,  H04N19/172 ,  H04N19/136 ,  H04N19/159

CPC classification number: H04N19/174 ,  H04N19/117 ,  H04N19/134 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172

Abstract: A video coding mechanism is disclosed. The mechanism includes partitioning a picture into a plurality of tiles. A number of the tiles are included in a tile group. A flag is also encoded into a parameter set of a bitstream. The flag is set to a first value when the tile group is a raster scan tile group and a second value when the tile group is a rectangular tile group. The tiles are encoded into the bitstream based on the tile group. The bitstream is stored for communication toward a decoder.

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.