Patents by Inventor Robert R. Kallman

Robert R. Kallman 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).

  • Coding intensity images as phase-only images for use in an optical correlator
    Patent number: 5214534
    Abstract: A method of performing image correlation in a Fourier transform correlator utilizes phase-encoding of the input image as a phase object with a normalized amplitude component. Phase-only reference image filters are used in conjunction with the phase-encoded input objects to improve the signal to clutter ratio. This technique can employ optical or digital implementation.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: May 25, 1993
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Robert R. Kallman, Dennis H. Goldstein