Patents by Inventor David E. Sigeti

David E. Sigeti has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rapid production of optimal-quality reduced-resolution representations of very large databases
    Patent number: 6208997
    Abstract: View space representation data is produced in real time from a world space database representing terrain features. The world space database is first preprocessed. A database is formed having one element for each spatial region corresponding to a finest selected level of detail. A multiresolution database is then formed by merging elements and a strict error metric is computed for each element at each level of detail that is independent of parameters defining the view space. The multiresolution database and associated strict error metrics are then processed in real time for real time frame representations. View parameters for a view volume comprising a view location and field of view are selected. The error metric with the view parameters is converted to a view-dependent error metric. Elements with the coarsest resolution are chosen for an initial representation. Data set first elements from the initial representation data set are selected that are at least partially within the view volume.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: March 27, 2001
    Assignee: The Regents of the University of California
    Inventors: David E. Sigeti, Mark Duchaineau, Mark C. Miller, Murray Wolinsky, Charles Aldrich, Mark B. Mineev-Weinstein