Patent ID: 11870974
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:
deriving, during a conversion between a current block of video and a bitstream of the current block, at least one combined affine model using multiple original affine models with control point motion vectors; and
generating the bitstream from the current block by using the at least one combined affine model,
wherein each of the at least one combined affine model has a first set of control point motion vectors, wherein the multiple original affine models have multiple second sets of control point motion vectors, respectively, and wherein each control point motion vector in the first set of control point motion vectors is a function of corresponding control point motion vectors in each of the multiple second sets of control point motion vectors,
wherein the control point motion vectors of the multiple second sets used in a same one function are motion vectors of control points at a same position in different original affine models.