Video encoding method for providing motion compensation method based on mesh structure using motion model and video encoding apparatus therefor

摘要

Coding method of the image to provide a motion compensation method using a motion model based on a mesh, and that the encoder is disclosed. ; According to the invention, the encoding method of the image to provide a motion compensation method in the mesh base, the affine than the conventional simple motion model (affine) using the movement model and the current error of the image and between the previous reference image larger sequence encoded as priority map (map) the created image will be encoded with the error between the priority assigned to the bits for coding a motion vector for the calculation ability and large portions from the motion prediction. That is, the priority of the control point of the motion vector to be encoded mash characterized in that to the first processing unit to the n% of the total number of blocks. ; Accordingly, the effective encoding efficiency by assigning and the movement of the block can also be expressed more efficiently with a small amount of information, preferentially calculated in the high block selectively importance ability and coded bits by using a sophisticated motion model than a conventional block-based coding method the can get.