Patent ID: 11917138
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. A non-transitory computer-readable medium for recording a bitstream, the bitstream comprising:
reference sample information indicating reference samples among a plurality of adjacent samples including first adjacent samples and second adjacent samples; and
an index indicating an intra prediction mode for a current block among a plurality of candidate intra prediction modes,
wherein the reference sample information and the index are obtained by:
generating the reference sample information;
when the reference sample information does not indicate the first adjacent samples, determining a intra prediction mode candidate list, for the current block, including the plurality of candidate intra prediction modes excluding a planar mode;
generating the index; and
generating predicted samples of the current block using the intra prediction mode for the current block and the second adjacent samples, and

wherein:
the first adjacent samples include an adjacent sample directly adjacent to the current block,
the second adjacent samples include an adjacent sample being above the adjacent sample directly adjacent to the current block,
the adjacent sample being above the adjacent sample directly adjacent to the current block is one line away from the current block, and
the plurality of candidate intra prediction modes are determined using an intra prediction mode of a left neighboring block of the current block and an intra prediction mode of an upper neighboring block of the current block.