Patent ID: 11936916
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image decoding method performed by a decoding apparatus, the method comprising:
obtaining image information including residual information and prediction information through a bitstream;
determining whether or not lossless coding is used from the image information;
generating prediction samples for a current block based on a result of the determination and the prediction information;
generating residual samples for the current block based on the result of the determination and the residual information; and
generating reconstructed samples for the current block based on the prediction samples and the residual samples,
wherein based on the determination that the lossless coding is used for the current block, an Intra Sub-Partitions (ISP), a luma dependent chroma residual scaling, a luma mapping with chroma scaling (LMCS), a Decoder-side motion vector refinement (DMVR), a Bi-directional optical flow (BDOF), and a prediction refinement with optical flow (PROF) are not applied to the current block.