Patent ID: 11962780
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. A video encoding method comprising:
generating information about an intra prediction mode of a top-left sample in a current chroma block;
obtaining an intra prediction mode of a sample at a bottom-right location in a current luma block corresponding to the current chroma block, wherein the current luma block is split into at least two lower luma blocks including a lower luma block comprising the sample at the bottom-right location;
determining an intra prediction mode of the top-left sample of the current chroma block using the intra prediction mode of the sample at the bottom-right location and the information; and
generating a bitstream comprising the information about the intra prediction mode of the top-left sample in the current chroma block by performing intra prediction on the current chroma block using the intra prediction mode of the top-left sample of the current chroma block,
wherein the sample at the bottom-right location is a sample at a location of ½ of a width of the current luma block in a right direction from a location of a top-left sample in the current luma block and ½ of a height of the current luma block in a lower direction from the location of the top-left sample in the current luma block, and
wherein the current chroma block is one among a plurality of blocks split from an upper chroma block.