An apparatus and method for generating a data set representation of an object or tissue are described. Two image representation data sets for the object or tissue are generated by a CT or MRI scan or other known imaging process. The second data set is preferably generated with enhanced contrast between...http://www.google.co.uk/patents/US5602891?utm_source=gb-gplus-sharePatent US5602891 - Imaging apparatus and method with compensation for object motion
