Patent ID: 7120277
Filing Date: 2006-10-10
Classification: G06T

Abstract:
1. A method of determining a second segment of a second image, with the determining based on a first segment of a first image, with the first segment and the second segment corresponding to an object, wherein the method comprises a calculation step to calculate a segment motion model which defines a transformation of the first segment into the second segment, by comparing values of pixels of the first image and the second image, wherein the calculation step comprises: a first sub step to calculate a motion vector field based on the first image and the second image, the motion vector field comprising a plurality of motion vectors, with each motion vector describing a translation from a first block of pixels of the first image to a second block of pixels of the second image; a second sub step to calculate a segment motion vector, based on the motion vectors of the motion vector field; and a third sub step to adjust a shape of the second segment based on a comparison of a plurality of the motion vectors of the motion vector field.