Patent ID: 11902509
Assignee: LX SEMICON CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A non-transitory computer-readable recording medium storing a bitstream which is decoded by an image decoding method,
wherein the image decoding method comprises,
deriving an intra prediction mode of a current chroma block;
selecting one or more reference sample lines for a current luma block from a plurality of reference sample lines adjacent to the current luma block in response to the intra prediction mode of the current chroma block being inter-component intra prediction mode, wherein the current luma block corresponds to the current chroma block;
deriving prediction parameters for inter-component intra prediction using the selected one or more reference sample lines; and
generating a prediction block by performing inter-component intra prediction for the current chroma block based on the current luma block and the prediction parameters.