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公开(公告)号：US20240406379A1
公开(公告)日：2024-12-05
申请号：US18796248
申请日：2024-08-06
Inventor： Seethal PALURI , Seunghwan KIM
IPC: H04N19/105 , H04N19/503 , H04N19/70
Abstract: Embodiments of the disclosure provide methods and devices for decoding video signals using inter prediction. According to an embodiment of the disclosure, a method for processing a video signal comprises constructing a reference picture list of a current picture in the video signal and performing a prediction for a current picture by using the reference picture list, wherein constructing the reference picture list comprising, if a first entry of the reference picture list corresponds to a short-term reference picture (STRP), obtaining a picture order count (POC) difference between a picture related to the first entry and another picture, and if a second entry of the reference picture list corresponds to a long-term reference picture (LTRP), obtaining a POC modulo value of a picture related to the second entry. A reference picture list for identifying a picture may be generated in a simplified and effective manner.
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公开(公告)号：US20250063212A1
公开(公告)日：2025-02-20
申请号：US18935012
申请日：2024-11-01
Inventor： Junghak NAM , Seunghwan KIM , Jaehyun LIM , Hyeongmoon JANG
IPC: H04N19/96 , H04N19/119 , H04N19/176 , H04N19/70
Abstract: Disclosed are a method for decoding a video signal and an apparatus therefor. Specifically, a method for decoding an image may include: partitioning a current coding tree block into a plurality of coding blocks so that coding blocks partitioned from the current coding tree block are included in a current picture when the current coding tree block is out of a boundary of the current picture; parsing a first syntax element indicating whether a current coding block is partitioned into a plurality of subblocks when the current coding block satisfies a predetermined condition; and determining a split mode of the current coding block based on the syntax element.
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公开(公告)号：US20250056000A1
公开(公告)日：2025-02-13
申请号：US18931236
申请日：2024-10-30
Inventor： Jungah CHOI , Jaehyun LIM , Jin HEO , Sunmi YOO , Ling LI , Jangwon CHOI , Seunghwan KIM
IPC: H04N19/132 , H04N19/105 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/70 , H04N19/88
Abstract: A decoding apparatus for image decoding includes: a memory and at least one processor connected to the memory, the at least one processor configured to: obtain a transform skip flag of a current block from a bitstream, obtain residual information of the current block from the bitstream based on the transform skip flag, wherein the residual information is residual information on transform skip, derive a specific number of context-coded bins for context syntax elements for the current block, decode the context syntax elements for a current sub-block of the current block included in the residual information based on the specific number, derive transform coefficients for the current sub-block based on the decoded context syntax elements, derive residual samples for the current block based on the transform coefficients, and generate a reconstructed picture based on the residual samples.
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公开(公告)号：US20240373016A1
公开(公告)日：2024-11-07
申请号：US18774225
申请日：2024-07-16
Inventor： Moonmo KOO , Jaehyun LIM , Junghak NAM , Seunghwan KIM
IPC: H04N19/124 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/46
Abstract: An image decoding method according to the present document comprises the steps of: deriving a quantized transform coefficient for a current block on the basis of BDPCM; deriving a transform coefficient by performing dequantization on the quantized transform coefficient; and deriving a residual sample on the basis of the transform coefficient, wherein, when the BDPCM is applied to the current block, inverse non-separable transform is not applied to the transform coefficient.
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