US Patent 6,611,615
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
The present invention provides a method and apparatus for generating inversely related forward and reverse image transformations in any image registration technique with ambiguous correspondence based upon the joint estimation of the transformation. Accordingly, two image data sets are received, a source and a target. Current sets of forward and reverse displacement fields are initialized. From the current set of forward and reverse displacement fields, the consistent forward transformation and the consistent reverse transformation are jointly estimated. These transformations are outputted.
Christensen, Gary E. Method and apparatus for generating consistent image registration. US Patent 6,611,615 filed June 25, 1999 and issued August 26, 2003. https://ir.uiowa.edu/patents/335