公开(公告)号：US11962763B2

公开(公告)日：2024-04-16

申请号：US18128630

申请日：2023-03-30

Applicant: Apple Inc.

Inventor： Bae Keun Lee

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

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

Abstract: 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：US11936895B2

公开(公告)日：2024-03-19

申请号：US18136572

申请日：2023-04-19

Applicant: Apple Inc.

Inventor： Bae Keun Lee

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

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

Abstract: An image decoding method according to the present invention comprises the steps of: referring to a first flag for indicating whether intra block-based delta pulse code modulation (BDPCM) signaled through a sequence parameter set is permitted, so as to determine whether a second flag for indicating whether the intra BDPCM is applied to a current block is parsed; determining whether the intra BDPCM is applied to the current block on the basis of the second flag; determining an intra BDPCM mode of the current block when it is determined that the intra BDPCM is applied to the current block; and acquiring a residual sample of the current block on the basis of the intra BDPCM mode.

公开(公告)号：US20240056571A1

公开(公告)日：2024-02-15

申请号：US18237312

申请日：2023-08-23

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：US11825086B2

公开(公告)日：2023-11-21

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：US11729376B2

公开(公告)日：2023-08-15

申请号：US17049289

申请日：2019-11-27

Applicant: APPLE INC.

Inventor： Bae Keun Lee

IPC: H04N19/10 ,  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.

公开(公告)号：US11601646B2

公开(公告)日：2023-03-07

申请号：US17219875

申请日：2021-03-31

Applicant: APPLE INC.

Inventor： Bae Keun Lee

IPC: H04N19/119 ,  H04N19/172 ,  H04N19/174 ,  H04N19/70 ,  H04N19/103 ,  H04N19/159 ,  H04N19/176

Abstract: 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.

公开(公告)号：US20220408086A1

公开(公告)日：2022-12-22

申请号：US17894067

申请日：2022-08-23

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：US11418811B2

公开(公告)日：2022-08-16

申请号：US17266694

申请日：2020-03-12

Applicant: APPLE INC.

Inventor： Bae Keun Lee

IPC: H04N19/124 ,  H04N19/60 ,  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：US20250097425A1

公开(公告)日：2025-03-20

申请号：US18954870

申请日：2024-11-21

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/136 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  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：US12238286B2

公开(公告)日：2025-02-25

申请号：US18500049

申请日：2023-11-01

Applicant: Apple Inc.

Inventor： Bae Keun Lee

IPC: H04N19/119 ,  H04N19/174

Abstract: A video decoding method according to the present disclosure may include 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 and decoding first width information and first height information of a slice when the partitioning information represents that the rectangular slice is applied.