公开(公告)号：US12120313B2

公开(公告)日：2024-10-15

申请号：US17714541

申请日：2022-04-06

申请人： Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

发明人： Hongbin Liu ,  Li Zhang ,  Kai Zhang ,  Jizheng Xu ,  Yue Wang

IPC分类号： H04N19/159 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/96

CPC分类号： H04N19/159 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/96

摘要： A method for video processing is provided to include determining, for a conversion between a current video block of a video and a coded representation of the video, whether an intra block copy (IBC) mode in which a prediction block for the current video block is calculated based on a block vector in a picture that includes current video block is enabled based on a rule on a block dimension; and performing the conversion based on the determining.

公开(公告)号：US20240223752A1

公开(公告)日：2024-07-04

申请号：US18608059

申请日：2024-03-18

申请人： LG Electronics Inc.

发明人： Jaehyun LIM ,  Jungsun KIM ,  Seungwook PARK ,  Jaewon SUNG ,  Byeongmoon JEON ,  Joonyoung PARK ,  Yongjoon JEON ,  Younghee CHOI

IPC分类号： H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/50 ,  H04N19/513 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577

CPC分类号： H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/50 ,  H04N19/513 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577

摘要： The present invention relates to a method and apparatus for encoding or decoding a video signal. According to the present invention, a plurality of reference units for image prediction of the current unit is acquired and combined to obtain a unit prediction value, thereby improving the accuracy of image prediction. More particularly, the present invention relates to a method for inducing a variety of reference units using a motion vector prediction value or a motion vector which is used in conventional inter-prediction, and also relates to a method which combines the reference units so as to obtain the prediction value for the current unit. In addition, the present invention relates to a method which involves acquiring a plurality of reference units for a merging mode, and combining the reference units so as to perform image prediction.

公开(公告)号：US20240187644A1

公开(公告)日：2024-06-06

申请号：US18545040

申请日：2023-12-19

申请人： Electronics and Telecommunications Research Institute

发明人： Sung Chang LIM ,  Jung Won KANG ,  Hyun Suk KO ,  Ha Hyun LEE ,  Dong San JUN ,  Jin Ho LEE ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI

IPC分类号： H04N19/583 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/51 ,  H04N19/513 ,  H04N19/56 ,  H04N19/577 ,  H04N19/96

CPC分类号： H04N19/583 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51 ,  H04N19/96 ,  H04N19/132 ,  H04N19/197 ,  H04N19/463 ,  H04N19/513 ,  H04N19/56 ,  H04N19/577

摘要： The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: generating a merge candidate list of a current block including at least one merge candidate corresponding to each of a plurality of reference picture lists; determining at least one piece of motion information by using the merge candidate list; and generating a prediction block of the current block by using the determined at least one piece of motion information.

公开(公告)号：US20240171771A1

公开(公告)日：2024-05-23

申请号：US18387809

申请日：2023-11-07

申请人： LG ELECTRONICS INC.

发明人： Jane ZHAO ,  Seunghwan KIM

IPC分类号： H04N19/56 ,  H04N19/176 ,  H04N19/513

CPC分类号： H04N19/56 ,  H04N19/176 ,  H04N19/513

摘要： The disclosure discloses a method for processing video signals and an apparatus therefor. Specifically, the method of processing video signals based on inter prediction, comprising: configuring a merge candidate list based on a spatial neighboring block and a temporal neighboring block to a current block; adding a history-based merge candidate of the current block to the merge candidate list; obtaining a merge index indicating a merge candidate used for an inter prediction of the current block within the merge candidate list; generating a prediction sample of the current block based on motion information of the merge candidate indicated by the merge index; and updating a history-based merge candidate list based on the motion information.

公开(公告)号：US20240163472A1

公开(公告)日：2024-05-16

申请号：US18416468

申请日：2024-01-18

申请人： Sun Patent Trust

发明人： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU

IPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/513 ,  H04N19/52

CPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/52 ,  H04N19/521 ,  H04N19/503

摘要： A moving picture coding apparatus for coding a current block from among blocks in a picture is provided. A motion vector predictor candidate list, having a fixed size, is generated, with the motion vector predictor candidate list including first and second candidates. The motion vector predictor candidate list is generated by: deriving the first candidate from a first motion vector used to code a first block, with the first block being adjacent to the current block; and deriving the second candidate that has a second motion vector that is a non-zero value vector based on an X-Y axis of a fixed offset value, with the second motion vector not being derived by coding a block adjacent to the current block and the fixed offset value being a non-zero value that is added in a picture header and commonly used for the blocks in the picture.

公开(公告)号：US20240121426A1

公开(公告)日：2024-04-11

申请号：US18467513

申请日：2023-09-14

申请人： QUALCOMM Incorporated

发明人： Han Huang ,  Yan Zhang ,  Zhi Zhang ,  Vadim Seregin ,  Marta Karczewicz

IPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/119 ,  H04N19/127 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/56

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/119 ,  H04N19/127 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/56

摘要： Encoding and decoding video data using an affine decoder side motion vector derivation (DMVR) mode includes receiving a block of video data to be decoded using the affine DMVR mode, and dividing the block into a plurality of subblocks. A video encoder and video decoder may determine a final offset for the affine DMVR mode using a first subset of the plurality of subblocks. The video encoder and decoder may code the block of video data using the final offset to generate a coded block of video data.

公开(公告)号：US11956468B2

公开(公告)日：2024-04-09

申请号：US17573974

申请日：2022-01-12

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seungsoo Jeong ,  Minsoo Park ,  Minwoo Park ,  Kiho Choi ,  Yinji Piao

IPC分类号： H04N11/02 ,  H04N19/109 ,  H04N19/176 ,  H04N19/56

CPC分类号： H04N19/56 ,  H04N19/109 ,  H04N19/176

摘要： Provided is a video decoding method including: determining a prediction mode of a current block to be one of a skip mode and a merge mode; when a motion vector, which is determined from a merge candidate list of the current block, and a merge motion vector difference are to be used, obtaining merge candidate information indicating one candidate in the merge candidate list by performing entropy encoding on a bitstream by applying one piece of context information; determining a base motion vector from one candidate determined from the merge candidate list, based on the merge candidate information; and determining a motion vector of the current block by using a distance index of a merge motion vector difference of the current block and a direction index of the merge motion vector difference to use the base motion vector and the merge motion vector difference.

公开(公告)号：US11949903B2

公开(公告)日：2024-04-02

申请号：US17844673

申请日：2022-06-20

申请人： SUN PATENT TRUST

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/107 ,  H04N19/52 ,  H04N19/56 ,  H04N19/503

CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/107 ,  H04N19/52 ,  H04N19/56 ,  H04N19/503

摘要： A decoding method and apparatus are provided. A first candidate having a first motion vector that has been used to decode a first block, a first prediction direction that corresponds to the first motion vector, and a first reference picture index that identifies a first reference picture is derived. A second candidate having a second motion vector that has been used to decode a second block, a second prediction direction that corresponds to the second motion vector, and a second reference picture index that identifies a second reference picture is derived. When a total number of candidates is less than a maximum number, a third candidate is derived by combining the first motion vector and the first reference picture index for the first prediction direction of the first candidate and the second motion vector and the second reference picture index for the second prediction direction of the second candidate.

公开(公告)号：US20240073429A1

公开(公告)日：2024-02-29

申请号：US18503785

申请日：2023-11-07

申请人： Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

发明人： Hongbin Liu ,  Li Zhang ,  Kai Zhang ,  Jizheng Xu ,  Yue Wang

IPC分类号： H04N19/159 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/96

CPC分类号： H04N19/159 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/96

摘要： A method for video processing includes determining, for a conversion between a current video block of a video and a coded representation of the video, whether an intra block copy (IBC) mode in which a prediction block for the current video block is calculated based on a block vector in a picture that includes current video block is enabled based on a rule on a block dimension; and performing the conversion based on the determining.

公开(公告)号：US11917192B2

公开(公告)日：2024-02-27

申请号：US17966480

申请日：2022-10-14

申请人： Sun Patent Trust

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/52 ,  H04N19/513 ,  H04N19/503

CPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/52 ,  H04N19/521 ,  H04N19/503

摘要： A moving picture coding apparatus for coding a current block is provided. A first candidate is derived from a first motion vector that has been used to code a first block, and it is determined whether a total number of candidates including the first candidate is less than a maximum candidate number. A second candidate having a second motion vector is derived when the total number of the candidates is less than the maximum candidate number, with the second motion vector including a zero vector. A candidate is selected from a plurality of candidates including the first candidate and the second candidate, and the current block is decoded using the selected candidate.