Patent ID: 6061469
Filing Date: 2000-05-09
Classification: G06T

Abstract:
A system for rendering a material and geometric description of an object as a simulated X-Ray image, comprising:means for decomposing said object into a plurality of solids and a 3D model of said plurality of solids, each of said plurality of solids having a surface and a predetermined mass attenuation coefficient;means for registering said 3D model in a 3D coordinate system including a source of a simulated X-Ray beam and a scene graph relating said plurality of solids;means for passing said simulated X-Ray beam through said plurality of solids;means for determining if said simulated X-Ray beam is entering or exiting a particular one of said plurality of solids;means responsive thereto for locating a void along a path of said simulated X-Ray beam;means for attenuating said simulated X-Ray beam according to said material and geometric description and said void; andmeans responsive to the attenuation of said simulated X-Ray beam for independently rendering said plurality of solids as the simulated X-Ray image.