公开(公告)号：US20240022720A1

公开(公告)日：2024-01-18

申请号：US18208813

申请日：2023-06-12

Applicant: Apple Inc.

Inventor： Bae Keun Lee

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

CPC classification number: H04N19/119 ,  H04N19/174 ,  H04N19/70

Abstract: An image decoding method according to the present invention may include 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 include: 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：US20230179790A1

公开(公告)日：2023-06-08

申请号：US17957994

申请日：2022-09-30

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/52 ,  H04N19/107 ,  H04N19/122 ,  H04N19/184

CPC classification number: H04N19/52 ,  H04N19/107 ,  H04N19/122 ,  H04N19/184

Abstract: An image decoding method according to the present invention may comprise the steps of: generating an affine mergence candidate list for a current block; specifying one of multiple affine mergence candidates contained in the affine mergence candidate list; deriving affine seed vectors of the specified mergence candidate; deriving a sub-block motion vector for a sub-block in the current block by using the affine seed vectors, wherein the sub-block is smaller in size than the current block; deriving offset data for the sub-block; and generating a sub-prediction block for the sub-block on the basis of the affine vector and the offset data.

公开(公告)号：US20230164315A1

公开(公告)日：2023-05-25

申请号：US17892010

申请日：2022-08-19

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/119 ,  H04N19/167 ,  H04N19/174

CPC classification number: H04N19/119 ,  H04N19/167 ,  H04N19/174

Abstract: An image signal decoding method according to an embodiment of the present disclosure comprises the steps of: partitioning the current picture into a plurality of tiles; decoding partition information indicating a slice type, the partition information indicating whether a rectangular slice is to be applied; determining the number of slices in the current picture; and defining the slices using the tiles.

公开(公告)号：US12256070B2

公开(公告)日：2025-03-18

申请号：US18495716

申请日：2023-10-26

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/119 ,  H04N19/107 ,  H04N19/122 ,  H04N19/174

Abstract: An image decoding method according to the present invention includes: a step for dividing the current picture into a plurality of tiles; a step for decoding division information indicating a slice defining method; and a step for determining a first slice on the basis of the division information.

公开(公告)号：US20250071329A1

公开(公告)日：2025-02-27

申请号：US18941886

申请日：2024-11-08

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/60 ,  H04N19/124 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

Abstract: A method for decoding an image according to the present invention may comprise the steps of: deriving a residual coefficient of a current block; dequantizing the residual coefficient; deriving a common residual signal by performing inverse transform of the dequantized residual coefficient; and deriving a first residual signal of a first chroma component and a second residual signal of a second chroma component on the basis of the common residual signal.

公开(公告)号：US20250047845A1

公开(公告)日：2025-02-06

申请号：US18921372

申请日：2024-10-21

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/179 ,  H04N19/182 ,  H04N19/194 ,  H04N19/196 ,  H04N19/31 ,  H04N19/33 ,  H04N19/426 ,  H04N19/46 ,  H04N19/61 ,  H04N19/625

Abstract: A video decoding method according to the present invention may comprise: a step for determining whether to divide a current block into a plurality of sub-blocks; a step for determining an intra prediction mode for the current block; and a step for performing intra prediction for each sub-block on the basis of the intra prediction mode, when the current block is divided into the plurality of sub-blocks.

公开(公告)号：US20250039363A1

公开(公告)日：2025-01-30

申请号：US18913917

申请日：2024-10-11

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/105 ,  H04N19/107 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: A video decoding method according to the present disclosure includes determining a reference sample line for a current block, deriving an intra prediction mode for the current block, and performing intra prediction of the current block based on the reference sample line and the intra prediction mode.

公开(公告)号：US12192471B2

公开(公告)日：2025-01-07

申请号：US17419391

申请日：2020-12-15

Applicant: APPLE INC.

Inventor： Bae Keun Lee

IPC: H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/136 ,  H04N19/174 ,  H04N19/46

Abstract: A video signal decoding method according to the present disclosure includes decoding a first flag representing whether tile index difference value information is present or not, decoding size information for a first slice, decoding tile index difference value information for the first slice when the first flag is true and determining an index of a second tile at a top-left position of a second slice based on the tile index difference value information.

公开(公告)号：US12126796B2

公开(公告)日：2024-10-22

申请号：US18122683

申请日：2023-03-16

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52

Abstract: An image decoding method according to the present invention may comprise the steps of: generating a merge candidate list of a current block; selecting one merge candidate from merge candidates included in the merge candidate list; and performing motion compensation of the current block on the basis of motion information of the selected merge candidate.

公开(公告)号：US12120294B2

公开(公告)日：2024-10-15

申请号：US18210998

申请日：2023-06-16

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/105 ,  H04N19/107 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/105 ,  H04N19/107 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: A video decoding method according to the present disclosure includes determining a reference sample line for a current block, deriving an intra prediction mode for the current block, and performing intra prediction of the current block based on the reference sample line and the intra prediction mode.