公开(公告)号：US12058345B2

公开(公告)日：2024-08-06

申请号：US18219274

申请日：2023-07-07

申请人： LX Semicon Co., Ltd.

发明人： Dong San Jun ,  Ha Hyun Lee ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/126 ,  H04N19/13 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/593 ,  H04N19/96

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/126 ,  H04N19/13 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/593 ,  H04N19/96

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: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.

公开(公告)号：US12088785B2

公开(公告)日：2024-09-10

申请号：US18296344

申请日：2023-04-05

申请人： LX SEMICON CO., LTD.

发明人： Dong San Jun ,  Jung Won Kang ,  Sung Chang Lim ,  Hyun Suk Ko ,  Jin Ho Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/103 ,  H04N19/11 ,  H04N19/146 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91

CPC分类号： H04N19/103 ,  H04N19/11 ,  H04N19/146 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91

摘要： Provided are method and apparatus methods and apparatuses for encoding an intra-prediction mode based on a secondary IPM. The present invention may comprises a first decision step of determining whether an intra-prediction mode of a current block is included in a first candidate mode set including M candidate modes (M is an integer equal to or greater than 1); a second decision step of determining whether the intra-prediction mode of the current block is included in a second candidate mode set including N candidate modes (N is an integer equal to or greater than 1) based on a first determination result representing a determination result of the first decision step; and an intra prediction mode encoding step of encoding the intra-prediction mode of the current block based on the first determination result or a second determination result representing a determination result of the second decision step.

公开(公告)号：US12069237B2

公开(公告)日：2024-08-20

申请号：US17886154

申请日：2022-08-11

申请人： LX SEMICON CO., LTD

发明人： Dong San Jun ,  Jung Won Kang ,  Sung Chang Lim ,  Hyun Suk Ko ,  Jin Ho Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/103 ,  H04N19/11 ,  H04N19/146 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91

CPC分类号： H04N19/103 ,  H04N19/11 ,  H04N19/146 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91

摘要： Provided are method and apparatus methods and apparatuses for encoding an intra-prediction mode based on a secondary IPM. The present invention may comprises a first decision step of determining whether an intra-prediction mode of a current block is included in a first candidate mode set including M candidate modes (M is an integer equal to or greater than 1); a second decision step of determining whether the intra-prediction mode of the current block is included in a second candidate mode set including N candidate modes (N is an integer equal to or greater than 1) based on a first determination result representing a determination result of the first decision step; and an intra prediction mode encoding step of encoding the intra-prediction mode of the current block based on the first determination result or a second determination result representing a determination result of the second decision step.

公开(公告)号：US12126798B2

公开(公告)日：2024-10-22

申请号：US18185899

申请日：2023-03-17

申请人： LX Semicon Co., Ltd.

发明人： Hyun Suk Ko ,  Sung Chang Lim ,  Jung Won Kang ,  Dong San Jun ,  Seung Hyun Cho ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/11 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

CPC分类号： H04N19/11 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

摘要： The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.

公开(公告)号：US20230379458A1

公开(公告)日：2023-11-23

申请号：US18364269

申请日：2023-08-02

申请人： LX SEMICON CO., LTD.

发明人： Hyun Suk Ko ,  Sung Chang Lim ,  Jung Won Kang ,  Dong San Jun ,  Seung Hyun Cho ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/119

CPC分类号： H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/119

摘要： The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.

公开(公告)号：US12132915B2

公开(公告)日：2024-10-29

申请号：US18219293

申请日：2023-07-07

申请人： LX Semicon Co., Ltd.

发明人： Dong San Jun ,  Ha Hyun Lee ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/126 ,  H04N19/13 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/593 ,  H04N19/96

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/126 ,  H04N19/13 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/593 ,  H04N19/96

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: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.

公开(公告)号：US11902509B2

公开(公告)日：2024-02-13

申请号：US17523025

申请日：2021-11-10

申请人： LX SEMICON CO., LTD

发明人： Jin Ho Lee ,  Hyun Suk Ko ,  Jung Won Kang ,  Sung Chang Lim ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/119 ,  H04N19/186 ,  H04N19/80 ,  H04N19/91 ,  H04N19/593 ,  H04N19/117 ,  H04N19/51 ,  H04N19/159 ,  H04N19/70 ,  H04N19/96 ,  H04N19/172

CPC分类号： H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H04N19/91 ,  H04N19/96

摘要： An image encoding/decoding method and apparatus for predicting a second color component block using a first color component block are provided. An image decoding method of the present invention comprises deriving a prediction parameter using the first color component block, and predicting the second color component block using the derived prediction parameter.

公开(公告)号：US11743473B2

公开(公告)日：2023-08-29

申请号：US17717366

申请日：2022-04-11

申请人： LX SEMICON CO., LTD

发明人： Dong San Jun ,  Ha Hyun Lee ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/513 ,  H04N19/463 ,  H04N19/13 ,  H04N19/126 ,  H04N19/176 ,  H04N19/593 ,  H04N19/96

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/126 ,  H04N19/13 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/593 ,  H04N19/96

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: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.

公开(公告)号：US12088795B2

公开(公告)日：2024-09-10

申请号：US18295424

申请日：2023-04-04

申请人： LX SEMICON CO., LTD

发明人： Jin Ho Lee ,  Hyun Suk Ko ,  Jung Won Kang ,  Sung Chang Lim ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H04N19/91 ,  H04N19/96

CPC分类号： H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H04N19/91 ,  H04N19/96

摘要： An image encoding/decoding method and apparatus for predicting a second color component block using a first color component block are provided. An image decoding method of the present invention comprises deriving a prediction parameter using the first color component block, and predicting the second color component block using the derived prediction parameter.

公开(公告)号：US11689716B2

公开(公告)日：2023-06-27

申请号：US17502647

申请日：2021-10-15

申请人： LX SEMICON CO., LTD

发明人： Hyun Suk Ko ,  Sung Chang Lim ,  Jung Won Kang ,  Dong San Jun ,  Seung Hyun Cho ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

CPC分类号： H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

摘要： The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.