Patents by Inventor Caesar P. Ancheta

Caesar P. Ancheta 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).

  • Rectilinear object image matcher
    Patent number: 5265173
    Abstract: A process for extracting the precise perimeter of buildings from down-looking terrain images. The process works for any rectilinear building shape, and no restrictions are placed on the orientation or scale of the buildings within an image. The process has the advantages of robustness and execution speed. The process is robust in that it can extract building perimeters from a digitized image in the presence of multiple noise sources. The execution speed is proportional to N+M, where the size of the image is N by M pixels.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: November 23, 1993
    Assignee: Hughes Aircraft Company
    Inventors: Arthur F. Griffin, Caesar P. Ancheta