Patent ID: 11910014
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A video decoding apparatus, comprising:
an entropy decoder decoding predetermined information indicating whether residual block information for a target block is encoded in a bitstream or not; and
a predictor determining whether the residual block information is present based on the predetermined information, wherein:
the predictor generates the target block based on an intra prediction value and the residual block information for the target block in response to the predetermined information indicating that the residual block information is present,
the entropy decoder decodes intra prediction direction information for the target block from the bitstream,
the predictor generates the target block based on the intra prediction direction information in response to the predetermined information indicating that the residual block information is absent,
the intra prediction value is generated based on intra prediction using a reference pixel value, and
0 and 1 are values for the predetermined information to indicate whether the residual block information is encoded in the bitstream or not.