Patents by Inventor Vincent Lacasse

Vincent Lacasse 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).

  • Optimum fast textural feature extractor
    Patent number: 4897881
    Abstract: The invention relates to a textural parameter extractor for classification or learning. Four (4) simple 2D optimum masks independent of image, are applied to four adjacent pixels in order to diagonize the associated covariance matrice. The first three (3) central moments, namely absolute deviation, standard deviation and skewness for each transformed image constitute a feature vector of twelve (12) components for classification purposes. Parallel and Sequential structures are also presented for fast textural feature extractor applications.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: January 30, 1990
    Assignee: Centre de Recherche Industrielle du Quebec
    Inventors: Chon T. Ledinh, Vincent Lacasse, Paul Cohen