Patents by Inventor Regine Askenatzis

Regine Askenatzis 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).

  • Region-based texture coding and decoding method and corresponding systems
    Patent number: 5898798
    Abstract: The invention relates to an image sequence coding method in which images are segmented and coded with respect to their contours and textures. The texture coding step is carried out by means of a new technique relying on a wavelet decomposition of the images, called quincunx bidimensional wavelet transform and adapted to a region-based coding scheme, for applications allowing to reach very low bit rates while keeping a good image quality.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: April 27, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Lionel Bouchard, Regine Askenatzis
  • Region-based texture coding method and decoding method, and corresponding systems
    Patent number: 5845013
    Abstract: The invention relates to an image sequence coding method in which images are segmented and coded with respect to their contours and textures. The texture coding step is carried out by means of a lattice vector quantization method adapted to region-based coding schemes where regions have arbitrary shapes, for applications allowing to reach very low bit rates while keeping a good image quality.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: December 1, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Lionel Bouchard, Regine Askenatzis