公开(公告)号：US12075086B2

公开(公告)日：2024-08-27

申请号：US18130877

申请日：2023-04-04

申请人： XRIS CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

摘要： A video decoding method, according to the present invention, comprises the steps of: deriving an L0 motion vector and an L1 motion vector of a current block; deriving an L0 prediction sample and an L1 prediction sample for a first position inside the current block on the basis of the L0 motion vector and the L1 motion vector; determining whether to apply a bidirectional optical flow to the current block; deriving a refined motion vector for a subblock which comprises the first position, when it is determined to apply the bidirectional optical flow; deriving a refined prediction sample for the first position on the basis of the refined motion vector; and obtaining a prediction sample for the first position by using the L0 prediction sample, the L1 prediction sample, and the refined prediction sample.

公开(公告)号：US20240040118A1

公开(公告)日：2024-02-01

申请号：US18374974

申请日：2023-09-29

申请人： XRIS CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/119 ,  H04N19/174 ,  H04N19/46

CPC分类号： H04N19/119 ,  H04N19/174 ,  H04N19/46

摘要： An image decoding method, according to the present invention, may comprise the steps of: splitting a current picture into a plurality of tiles; decoding split information indicating slice type, wherein the split information indicates whether a square-shaped slice is applied; and determining a slice on the basis of tile index difference information if the split information indicates that the square-shaped slice is applied.

公开(公告)号：US20230319273A1

公开(公告)日：2023-10-05

申请号：US18207134

申请日：2023-06-07

申请人： XRIS CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/119 ,  H04N19/105 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46

CPC分类号： H04N19/119 ,  H04N19/105 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46

摘要： An image signal decoding method according to an embodiment of the present disclosure comprises the steps of: splitting a current picture into a plurality of tiles; decoding split information indicating a slice type, wherein the split information indicates whether a rectangular slice is to be applied; and when the split information indicates that the rectangular slice is to be applied, determining a slice on the basis of information indicating the size of a slice.

公开(公告)号：US11470314B2

公开(公告)日：2022-10-11

申请号：US17283542

申请日：2020-11-18

申请人： XRIS CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/119 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46

摘要： A video signal decoding method according to the present disclosure includes partitioning a current picture into a plurality of tiles, decoding partitioning information representing a slice type, wherein the partitioning information represents whether a rectangular slice is applied, decoding width information and height information for a first slice, decoding tile index difference value information for the first slice and determining an index of a top-left tile of a second slice based on the difference value information.

公开(公告)号：US20220103818A1

公开(公告)日：2022-03-31

申请号：US17503381

申请日：2021-10-18

申请人： XRIS CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/119 ,  H04N19/105 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46

摘要： An image signal decoding method according to an embodiment of the present disclosure comprises the steps of: splitting a current picture into a plurality of tiles; decoding split information indicating a slice type, wherein the split information indicates whether a rectangular slice is to be applied; and when the split information indicates that the rectangular slice is to be applied, determining a slice on the basis of information indicating the size of a slice.

公开(公告)号：US11184611B2

公开(公告)日：2021-11-23

申请号：US17215364

申请日：2021-03-29

申请人： XRIS CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/119 ,  H04N19/174 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

摘要： An image signal decoding method according to an embodiment of the present disclosure comprises the steps of: splitting a current picture into a plurality of tiles; decoding split information indicating a slice type, wherein the split information indicates whether a rectangular slice is to be applied; and when the split information indicates that the rectangular slice is to be applied, determining a slice on the basis of information indicating the size of a slice.

公开(公告)号：US20210297657A1

公开(公告)日：2021-09-23

申请号：US17259694

申请日：2020-02-26

申请人： XRIS CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

摘要： A method for decoding a video, according to the present invention, may comprise the steps of: generating an intra block copy (IBC) merge candidate list for a current block; selecting any one of IBC merge candidates included in the IBC merge candidate list; deriving a block vector of the current block on the basis of the selected IBC merge candidate; and obtaining a prediction sample of the current block on the basis of the block vector.

公开(公告)号：US11025944B2

公开(公告)日：2021-06-01

申请号：US17126803

申请日：2020-12-18

申请人： XRIS CORPORATION

发明人： Bae Keun Lee

IPC分类号： H04N19/109 ,  H04N19/51 ,  H04N19/159 ,  H04N19/70 ,  H04N19/176

摘要： A method for decoding a video, according to the present invention, may comprise the steps of: parsing a first flag indicating whether inter prediction on the basis of a merge mode is applied to a current block; if the first flag is true, parsing a second flag indicating whether a regular merge mode or a merge offset encoding mode is applied to the current block; and if the second flag is true, parsing a third flag indicating whether the merge offset encoding mode is applied to the current block.

公开(公告)号：US20210160497A1

公开(公告)日：2021-05-27

申请号：US17259139

申请日：2020-02-26

申请人： XRIS CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/119 ,  H04N19/174 ,  H04N19/70

摘要： An image decoding method according to the present invention may comprise: splitting a picture into a plurality of tiles; and determining at least one slice on the basis of the plurality of tiles. Here, splitting a picture into a plurality of tiles may comprise: determining the width of a first tile column in the picture; and determining the width of a second tile column neighboring the first tile column.

公开(公告)号：US20210067775A1

公开(公告)日：2021-03-04

申请号：US16950536

申请日：2020-11-17

申请人： XRIS CORPORATION

发明人： Bae Keun LEE

IPC分类号： H04N19/119 ,  H04N19/174 ,  H04N19/70 ,  H04N19/172

摘要： An image decoding method according to the present invention may include: a step for dividing a picture into a plurality of tiles; and a step for determining at least one slice on the basis of the plurality of tiles. Here, the step for dividing a picture into a plurality of tiles may include: a step for determining the width of a first tile column in the picture; and a step for determining the width of a second tile column neighboring the first tile column.