Patent ID: 11917133
Assignee: JVCKENWOOD CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A non-transitory computer readable medium storing a bitstream coded in units of blocks by a computer program, the computer program comprising:
deriving a subblock-based temporal merging candidate which comprises a motion vector a flag indicating whether or not a prediction subblock is valid for each reference list in units of subblocks;
deriving an affine inheritance merging candidate for inheriting an affine model of blocks neighboring a coding target block in a space domain;
deriving an affine construction merging candidate from a plurality of motion information elements of blocks neighboring the coding target block in the space domain or in a time domain;
deriving an affine fixation merging candidate in which motion information of an affine control point is fixed;
selecting a subblock-based merging candidate based on an index from the subblock-based temporal merging candidate, the affine inheritance merging candidate, the affine construction merging candidate and the affine fixation merging candidate; and
fixing a motion vector of each affine control point of the affine fixed merge candidate to (0, 0), wherein
the bitstream comprises the index.