Patent ID: 11936849
Assignee: JVCKENWOOD CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. A non-transitory computer-readable recording medium having embodied thereon a picture coding program of performing coding in units of intra block copy standard blocks, the program causing a computer to execute steps comprising:
a block vector candidate derivation step of deriving block vector candidates of a target block in a target picture from coding information stored in coding information storage memory;
a selection step of selecting a selected block vector from the block vector candidates;
a reference position correction step of performing a correction regarding a reference block to be referred to by the selected block vector so that a reference position of the reference block is to be corrected to refer to an inside of a referenceable region; and
a prediction step of acquiring a decoded sample in the target picture from decoded picture memory as a prediction value of the target block based on a reference position of the reference block,
wherein the reference position correction step sets a fixed number of intra block copy standard blocks subjected to a coding process immediately before an intra block copy standard block including the target block as a referenceable region, and sets an intra block copy standard block before the referenceable region and an intra block copy standard block including the target block as an invalid reference region regardless of whether the coding process is completed.