Patent ID: 11902575
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image decoding method, comprising:
extracting encoding information indicating whether residual block information for a target block is present in a bitstream from the bitstream; and
generating a reconstruction block for the target block based on the encoding information, wherein:
the reconstruction block is generated based on a prediction block for the target block, and
the generating of the reconstruction block comprises:
generating the reconstruction block based on intra prediction which uses an intra prediction direction for the target block in a case that the encoding information indicates that the residual block information is not present, wherein:
the intra prediction direction determines one or more reference pixels used for the intra prediction, and values for the encoding information to indicate whether the residual block information is present are 0 and 1.