Patent ID: 11956458
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An image encoding method performed by an encoding apparatus, the method comprising:
encoding image information including a Block-based Delta Pulse Code Modulation (BDPCM) enabled flag;
generating prediction samples for a current block; and
generating, based on the prediction samples, a bitstream including the image information,
wherein the BDPCM enabled flag is a flag indicating whether BDPCM is enabled for both a luma block and a chroma block within a current sequence or not,
wherein encoding the image information comprises,
encoding, in response to a case where the BDPCM enabled flag indicates that the BDPCM is enabled for both the luma block and the chroma block within the current sequence, a BDPCM luma flag indicating whether the BDPCM is applied to a current luma block belonging to the current block; and
encoding, in response to the case where the BDPCM enabled flag indicates that the BDPCM is enabled for both the luma block and the chroma block within the current sequence, a BDPCM chroma flag indicating whether the BDPCM is applied to current chroma blocks belonging to the current block.