Patents by Inventor Stefan H. E. Ludeke

Stefan H. E. Ludeke 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).

  • Image processing for noise reduction
    Patent number: 5708693
    Abstract: An image processing method includes multi-resolution decomposition to decompose an input image into frequency-band images, which are subsequently filtered according to an order statistics filtering. Preferably, a finite impulse response median hybrid is employed. The filtered frequency-band images are synthesized to form the filtered output image.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: January 13, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Til Aach, Dietmar W. Kunz, Stefan H. E. Ludeke