Motion compensation using region constrained warping prediction

A region constrained warping prediction (RCWP) is proposed for motion compensation based on segmentation information. In contrast to the conventional warping prediction, the RCWP scheme allows motion discontinuities (MD) in the motion field which usually exist along the boundaries of moving objects. For the mesh points located on the boundaries, multiple motion vectors are assigned, and only one motion vector is assigned for the others as in conventional warping prediction. Since the motion field affects the segmentation result and vice versa, an iterative refinement scheme should be adopted. Experimental results have shown that the proposed motion compensation scheme based on the RCWP provides a better performance than the conventional motion compensation schemes