Motion Estimation by Affine Transforms Based on Codirectionality of Movements

Motion estimation is a critical part of any video coding scheme. Block matching schemes, though being easy to implement, could produce poor results when multiple moving objects exist in one block. In this paper a new mesh-based algorithm is presented which uses affine transforms. The algorithm searches for codirectionality among pixels of a mesh element. When objects pass each other in a scene the superiority of the proposed algorithm is more …