Patent ID: 11889067
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A transmission method for data comprising a bitstream including an image by an apparatus, the method comprising:
obtaining the bitstream for the image; and
transmitting the data comprising the bitstream,
wherein the bitstream is generated by performing the steps of:
deriving an intra prediction mode of a current block;
generating reference samples based on a width and a height of the current block;
generating prediction samples of the current block using the reference samples based on the intra prediction mode of the current block; and
generating residual samples of the current block based on the prediction samples of the current block,

wherein, based on the current block being a non-square block, a first intra prediction mode is used as the intra prediction mode of the current block, instead of a second intra prediction mode covering a specific angle range in a plurality of intra prediction modes, and
wherein the second intra prediction mode is determined based on a ratio of the width and height of the current block.