Patent ID: 7616783
Filing Date: 2009-11-10
Classification: G06T

Abstract:
1. A computer implemented method of evaluating the quality of a match between two digitized images, said method performed by the computer comprising the steps of: providing a pair of digitized images, each image comprising a plurality of intensities corresponding to a domain of points on an 3-dimensional grid, wherein said images depict the same object at different times, and wherein a contrast enhancing agent was applied to said object before the acquisition of at least one of said images, calculating a subtraction image I wherein (x,y,z) represents a point in the domain, I 1 (x,y,z) is a first image of said pair of images and I 2 (x,y,z) is a second image of said pair of images; and calculating a motion quantification measure | wherein the sum is restricted to those I Δ <0, ƒ is a function, β is a constant, and N − is the number of domain points with negative subtraction image values, wherein said motion quantification measure quantifies motion artifacts in said pair of images.