Non-Rigid Body Motion

During the last few years motion analysis has developed into a major field of interest in image analysis and understanding . Considerable progress has been made as evidenced by the number of publications . However , most of these have been confined to the study of rigid body mot ion . Very few have addressed the issue of non-rigid body motion which poses many interesting and difficult problems . We propose a new technique for analyzing non -rigid body motion of closed boundary shapes that is based on the computation of skeletons at multiple resolu tions . This techn ique is used for analyzing the structural changes in the morphology of locomoting Iymphocytes and, in particular , of their pseudopods .