Patents by Inventor Laurence Caisey-Bluteau

Laurence Caisey-Bluteau 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 and apparatus for measuring color
    Publication number: 20020051097
    Abstract: The invention relates to apparatus for measuring color, the apparatus comprising: an acquisition system including a video camera and processing means organized to respond to the signals delivered by the camera to determine the tristimulus values of the color of the object in a reference calorimetric system by using a transfer matrix to transform the calorimetric system associated with said acquisition system into the reference calorimetric system, and to determine a correction function &Ggr; to correct the non-linearities of said acquisition system.
    Type: Application
    Filed: October 10, 2001
    Publication date: May 2, 2002
    Applicant: L'OREAL
    Inventors: Laurence Caisey-Bluteau, Johan Aubert
  • Color measuring method and device
    Patent number: 6362849
    Abstract: The invention relates to apparatus for measuring color, the apparatus comprising: an acquisition system including a video camera and processing means organized to respond to the signals delivered by the camera to determine the tristimulus values of the color of the object in a reference colorimetric system by using a transfer matrix to transform the colorimetric system associated with said acquisition system into the reference colorimetric system, and to determine a correction function &Ggr; to correct the non-linearities of said acquisition system.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: March 26, 2002
    Assignee: L'Oreal
    Inventors: Laurence Caisey-Bluteau, Johan Aubert