Patents by Inventor Van Der Stelt, Paul F.

Van Der Stelt, Paul F. 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).

  • Systematic method for matching existing radiographic projections with radiographs to be produced from a specified region of interest in cancellous bone
    Patent number: 4769756
    Abstract: A method to synthesize arbitrary projection images from a basis set of projections bearing a known geometric relationship to each other. In order to determine retrospectively the projection angle of a radiograph of interest with repect to the set of basis projections, similarity measures based on the gray-level standard deviations in corresponding images are used. An iterative coordinate estimation procedure is implemented incorporating these methods with radiographs obtained from dry skull specimens.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: September 6, 1988
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Webber, Richard L., Ruttimann, Urs E., Van Der Stelt, Paul F., Paul Edholm