Patents by Inventor Max Griessl

Max Griessl 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).

  • Method and system for the estimation and compensation of brightness changes for optical flow calculations
    Patent number: 6959118
    Abstract: In a video processing system scene shifts are detected and the need for adjusting the brightness between pairs of adjacent frames of a video motion picture is assessed. The need for brightness adjustment is assessed and a possible scene shift is detected by identifying homogeneous pixels in at least one frame of a pair of adjacent frames of the motion picture. The brightness of one of the adjacent frames is then adjusted and a scene shift is detected based on the ratio of the number of homogeneous pixels undergoing a substantial change in brightness relative to the total number of homogeneous pixels identified. When a need for a brightness adjustment is determined the brightness of one of the frames is adjusted before estimating optical flow between the frames.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: October 25, 2005
    Assignee: Dynapel Systems, Inc.
    Inventors: Max Griessl, Markus Wittkop, Siegfried Wonneberger
  • Method and system for the estimation and compensation of brightness changes for optical flow calculations
    Publication number: 20020163596
    Abstract: In a video processing system scene shifts are detected and the need for adjusting the brightness between pairs of adjacent frames of a video motion picture is assessed. The need for brightness adjustment is assessed and a possible scene shift is detected by identifying homogeneous pixels in at least one frame of a pair of adjacent frames of the motion picture. The brightness of one of the adjacent frames is then adjusted and a scene shift is detected based on the ratio of the number of homogeneous pixels undergoing a substantial change in brightness relative to the total number of homogeneous pixels identified. When a need for a brightness adjustment is determined the brightness of one of the frames is adjusted before estimating optical flow between the frames.
    Type: Application
    Filed: March 20, 2002
    Publication date: November 7, 2002
    Inventors: Max Griessl, Markus Wittkop, Siegfried Wonneberger
  • Method and apparatus for multiresolution object-oriented motion estimation
    Patent number: 6370196
    Abstract: A method for estimating a motion field from a first image with a corresponding first shape to a second image with a corresponding second shape, wherein a hypothesis motion field is given and the motion fields have one motion vector for each valid pixel or valid block of pixels in the first image.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: April 9, 2002
    Assignee: IDT International Digital Technologies Deutschland GmbH
    Inventors: Max Griessl, Harald Skt. Martens, Jan Otto Reberg, Clemens Röttgermann, Markus Wittkop, Siegfried Wonneberger