Patents by Inventor Nadege Lempriere

Nadege Lempriere 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 of searching for parameterized contours for comparing irises
    Patent number: 9183439
    Abstract: A method for detecting outlines for iris comparison comprises a step of selecting N candidate outlines of circular form by applying a circle search technique to an image of edges of an iris. It also comprises a step of optimizing the form and the position of the N candidate outlines, the optimized candidate outlines being determined by using parametric models, a set of parameters being determined for each candidate outline by minimizing a quantity of energy E(C). The method also comprises a step of selecting the best optimized candidate outline.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: November 10, 2015
    Assignee: Thales
    Inventors: Thierry Lefebvre, Nadege Lempriere, Sonia Garcia, Bernadette Dorizzi
  • METHOD OF SEARCHING FOR PARAMETERIZED CONTOURS FOR COMPARING IRISES
    Publication number: 20140226875
    Abstract: A method for detecting outlines for iris comparison comprises a step of selecting N candidate outlines of circular form by applying a circle search technique to an image of edges of an iris. It also comprises a step of optimizing the form and the position of the N candidate outlines, the optimized candidate outlines being determined by using parametric models, a set of parameters being determined for each candidate outline by minimizing a quantity of energy E(C). The method also comprises a step of selecting the best optimized candidate outline.
    Type: Application
    Filed: May 11, 2012
    Publication date: August 14, 2014
    Applicant: THALES
    Inventors: Thierry Lefebvre, Nadege Lempriere, Sonia Garcia, Bernadette Dorizzi