An ultrasound image is morphed for perfusion assessment. Various images within a sequence of images or movie clip are mapped to one frame of reference using local warping. Nonlinear local image transformations or other warping based on local estimates of motion are used to interpolate different images...http://www.google.ca/patents/US6659953?utm_source=gb-gplus-sharePatent US6659953 - Morphing diagnostic ultrasound images for perfusion assessment
