Patent ID: 11882272
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A non-transitory computer-readable recording medium storing a bitstream decoded by an image decoding method, the image decoding method comprising:
obtaining sub-block division information indicating whether the current coding block is divided into a plurality of sub-blocks in response to the current coding block being intra-predicted and a size of the current coding block being within a predetermined range;
deriving an MPM list for the current coding block based on one or more intra prediction modes from neighboring blocks of the current coding block; and
when the sub-block division information indicates that the current coding block is divided into the plurality of sub-blocks, dividing the current coding block into a plurality of sub-blocks and generating a prediction block for each of the plurality of sub-blocks according to an intra prediction mode derived based on the MPM list for the current coding block, and
wherein the plurality of sub-blocks are generated by dividing the current coding block vertically or horizontally, and
wherein the prediction block for each of the plurality of sub-blocks are generated by the infra prediction mode derived based on the MPM list of the current coding block.