In a morphing system for creating intermediate images that, viewed serially, make an object in a source image appear to metamorphose into a different object in a target image, correspondences between feature points in the source and target images are determined by simulating the modes of motion of respective...http://www.google.ca/patents/US5590261?utm_source=gb-gplus-sharePatent US5590261 - Finite-element method for image alignment and morphing
