Patents by Inventor Laurent Demaret

Laurent Demaret 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).

  • Methods and devices for encoding and decoding images using nested meshes, programme, signal and corresponding uses
    Patent number: 7346219
    Abstract: The invention concerns a method for encoding at least a source image using a hierarchical mesh defining at least two nested spaces corresponding each to a decomposition level of said meshing, which consists, at least at a decomposition level n (except the first decomposition level), in delivering only image coefficients expressed in a base of functions defined in a space orthogonal to the space corresponding to the preceding decomposition level n?1, said functions being selected so that said image coefficients enable to optimize for said decomposition level n the data already transmitted for the preceding decomposition level n?1, so as to produce a reconstructed image, representing said source image, with optimized restoration quality for said decomposition level n.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: March 18, 2008
    Assignee: France Telecom
    Inventors: Laurent Demaret, Nathalie Laurent-Chatenet
  • Methods and devices for encoding and decoding images using nested meshes, programme, signal and corresponding uses
    Publication number: 20040218824
    Abstract: The invention concerns a method for encoding at least a source image using a hierarchical mesh defining at least two nested spaces corresponding each to a decomposition level of said meshing, which consists, at least at a decomposition level n (except the first decomposition level), in delivering only image coefficients expressed in a base of functions defined in a space orthogonal to the space corresponding to the preceding decomposition level n−1, said functions being selected so that said image coefficients enable to optimize for said decomposition level n the data already transmitted for the preceding decomposition level n−1, so as to produce a reconstructed image, representing said source image, with optimized restoration quality for said decomposition level n.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 4, 2004
    Inventors: Laurent Demaret, Nathalie Laurent-Chatenet