Patents Represented by Attorney, Agent or Law Firm Flieslier, Dubb, Meyer & Lovejoy LLP
  • Patent number: 6384826
    Abstract: A surface reconstruction system generates a “crust” to re-construct d dimensional surfaces from a set of sample points. A Voronoi diagram, which comprises a plurality of Voronoi cells and Voronoi vertices, is generated from the sample points to define the geometric shape of the Voronoi cells. The surface features of the original surface are re-constructed from the geometric shape of the Voronoi cell through selection of a subset of Voronoi vertices of the Voronoi diagram so as to approximate the medial axis of the original surface. In one embodiment, a subset of Voronoi vertices of the Voronoi diagram are selected by designating at least one pole for a corresponding Voronoi cell. The surface reconstruction technique also computes a Deluanay triangulation from the sample points and the poles, and then filters triangles from the Deluanay triangulation in which all three vertices are not sample points.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: May 7, 2002
    Assignee: Xerox Corporation
    Inventors: Marshall Wayne Bern, Annamaria B. Amenta