A preliminary study of pixel-based motion compensation
Uchida Seiichi, 内田 誠一, 迫江 博昭, Hiroaki Sakoe · IEICE technical report. Image engineering · 2002
A pixel-based motion compensation (MC) technique where a motion vector is determined at every pixel is investigated. Image sequence compression using the present MC technique will require less bits for prediction error than that using conventional block-based MC techniques. One of the main problem of pixel-based MC is how to save the number of bits for the motion vectors. For this problem, some constraint is imposed between neighboring motion vectors. Experimental results have shown that the present MC technique can attain higher compression rates than a block-based MC technique for image sequences with large motion.