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

Claim 2:
3. A computer program stored in a non-transitory computer readable medium applied to a moving-picture coding operation which performs an affine transform in units of coding blocks, the computer program comprising instructions of:
deriving a subblock-based temporal merging candidate which comprises a motion vector and 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 a space or time domain;
deriving an affine fixation merging candidate in which motion information of an affine control point is fixed; and
selecting a subblock-based merging candidate from the subblock-based temporal merging candidate, the affine inheritance merging candidate, the affine construction merging candidate and the affine fixation merging candidate,
wherein the deriving the affine fixation merging candidate further comprises fixing a motion vector of each affine control point of the affine fixed merge candidate to (0, 0).