Patents by Inventor Johan Villé

Johan Villé 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 data compression
    Patent number: 7177478
    Abstract: Two-dimensional blocks of line-work image data are subjected to: fractal reordering; run length encoding of the pixel values of the fractal re-ordered data, index encoding of the run length encoded pixel values; and entropy encoding of the index encoded pixel values and run lengths. This lossless, but in case of applying a quantisation step, lossy image data compression and decompression method is particularly suitable for handling image data in a printer environment, and more particularly for handling image data comprising line work data or both raster images and line work data.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: February 13, 2007
    Assignee: Xeikon International N.V.
    Inventors: Johan Villé, Koen Van Hulle
  • Image data compression
    Publication number: 20010024293
    Abstract: Two-dimensional blocks of line-work image data are subjected to: fractal reordering; run length encoding of the pixel values of the fractal re-ordered data, index encoding of the run length encoded pixel values; and entropy encoding of the index encoded pixel values and run lengths. This lossless, but in case of applying a quantisation step, lossy image data compression and decompression method is particularly suitable for handling image data in a printer environment, and more particularly for handling image data comprising line work data or both raster images and line work data.
    Type: Application
    Filed: February 23, 2001
    Publication date: September 27, 2001
    Inventors: Johan Ville, Koen Van Hulle