Patent ID: 6373998
Filing Date: 2002-04-16
Classification: G06T,Y10S

Abstract:
An electronic image processing device, comprisingmeans for receiving a first set of image data representing a first digital image and a second set of image data representing a second digital image, the second digital image being comparable to the first digital image; means for determining a registration transformation between the first image and the second image, using the received first and second sets of image data; means for resampling the first set of image data to form a third set of image data relating to the first image, using the determined registration transformation; and processing means, processing the second and third sets of image data, to superpose directly, sample-by-sample, the third set of image date on the second set of image data, select superposable areas of interest of the images constituted, respectively, by the second and third sets of image data, determine a deformation vector field from the images constituted by the second and third sets of image data, at least in the superposable areas of interest, and compute from the vector field at least one set of differential data representing volumetric differences between the superposable areas of interest.