Patent Document ID: 5499322
Application ID: 08040292
Patent Status: 1

Claim One:
1. An electronic device for processing image information comprising: (a) image definition means for supplying, in correspondence with a polyhedral meshing of a portion of a space, a numerical value for each vertex of the polyhedral meshing, (b) polygon processing means for receiving a representation of a polygon with p vertices in a plane p respective values for the p vertices, and a threshold, and for supplying, in correspondence with the polygon a list of oriented segments linking points of edges of the polygon interpolated as equal to the threshold, in conformance with a predetermined direction convention, (c) polyhedron processing means for receiving a representation of a polyhedron with values at vertices thereof and a threshold, and for calling the polygon processing means for each face of the polyhedron, the polygon processing means supplying a list of oriented segments, and associating with the polyhedron a list of closed and oriented cycles formed by segments from the list of oriented segments, and (d) main processing means for presenting sequentially a plurality of polyhedrons of the polyhedral meshing to the polyhedron processing means, with values associated with vertices thereof and a threshold, said polyhedron processing means thus producing cycles, the cycles belonging to an iso-surface of an image for the threshold value.