Patents by Inventor Valerie Letournel

Valerie Letournel 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 for detecting a fake finger for fingerprint acquisition software
    Patent number: 8923576
    Abstract: A method for detecting a fake finger for fingerprint acquisition software with improved performance, the method implementing a static analysis step including a calculation of a Gray Level Run Length matrix of an image of a finger. Optionally, but preferably, the static analysis and a dynamic analysis are combined so as to optimize the ability to detect fake fingers.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: December 30, 2014
    Assignee: Thales
    Inventors: Charles Sayac, Valerie Letournel, Philippe Robin