Patent ID: 7027650
Filing Date: 2006-04-11
Classification: G06K,G06T

Abstract:
1. A computerized method for studying alterations in the location of an object from a first image of the object at a first location and a second image of the object at a second location, said images being in the form of series of lines of successive points, said method comprising the steps of: viewing at least said first image and said second image of the object on a screen; marking at least one element belonging to the object in said first image and in said second image viewed on the screen; computing for said first image and said second image, from said marked elements successive shapes by means of a dynamic contour model algorithm, in which the algorithm determines internal forces and external forces at different points of a shape, as well as deformation forces at different points of the shape so as to define a deformed shape, and in which said algorithm is reiterated with said deformed shape up to reaching a stabilized deformed shape, whereby the dynamic contour model algorithm develops successive shapes and is associated to computer instructions for determining a correlation between two successive shapes and for stopping the reiteration of the algorithm when said determined correlation is lower than a predetermined value; and computing from the deformed shapes of the object in said first and second images an amplitude of the alteration in location of said object between said first and second images.