公开(公告)号：US12294711B2

公开(公告)日：2025-05-06

申请号：US18383327

申请日：2023-10-24

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Jungah Choi ,  Seunghwan Kim ,  Jin Heo ,  Sunmi Yoo ,  Ling Li ,  Jangwon Choi

IPC: H04N19/132 ,  H04N19/129 ,  H04N19/176 ,  H04N19/46 ,  H04N19/60

Abstract: An image decoding method performed by a decoding apparatus according to the present disclosure includes receiving a bitstream including residual information; deriving quantized transform coefficients for a current block based on the residual information included in the bitstream; deriving transform coefficients for the current block from the quantized transform coefficients based on an inverse quantization process; deriving residual samples for the current block by applying inverse transform to the derived transform coefficients; and generating a reconstructed picture based on the residual samples for the current block.

公开(公告)号：US12273509B2

公开(公告)日：2025-04-08

申请号：US18623652

申请日：2024-04-01

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Ling Li ,  Seunghwan Kim

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

Abstract: A picture decoding method which is performed by a decoding apparatus according to an example of the present disclosure includes constructing a Most Probable Modes (MPM) list including intra prediction mode candidates for a current block based on neighboring blocks of the current block, decoding remaining mode information indicating one of remaining intra prediction modes other than the intra prediction mode candidates included in the MPM list from a bitstream, determining an intra prediction mode of the current block based on the decoded remaining mode information, generating prediction samples for the current block based on the determined intra prediction mode, and generating reconstructed samples for the current block based on the prediction samples for the current block, wherein the remaining mode information is decoded based on a truncated binary code.