Patents by Inventor Guillaume Petitjean

Guillaume Petitjean 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).

  • Patent number: 11554106
    Abstract: A method of treating a subject for reducing the risk of QT space prolongation associated with the intake of a drug known to prolong QT space includes administering to the subject at least one specific inhibitor of mitochondrial ROS production selected from among anethole trithione (ATT), 4-OH-anethole trithione (ATX), and an ATX ester, and administering to the subject the drug known to prolong QT space.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: January 17, 2023
    Inventors: Marc Childs, Jacque Sauzieres, Olivier Petitjean, Guillaume Petitjean, Elodie Petitjean, Grégoire Petitjean
  • Publication number: 20210052549
    Abstract: A method of treating a subject for reducing the risk of QT space prolongation associated with the intake of a drug known to prolong QT space includes administering to the subject at least one specific inhibitor of mitochondrial ROS production selected from among anethole trithione (ATT), 4-OH-anethole trithione (ATX), and an ATX ester, and administering to the subject the drug known to prolong QT space.
    Type: Application
    Filed: March 7, 2018
    Publication date: February 25, 2021
    Inventors: Marc Childs, Jacque Sauzieres, Olivier Petitjean, Guillaume Petitjean, Elodie Petitjean, Grégoire Petitjean
  • Patent number: 8325996
    Abstract: The present disclosure relates to a method for locating the iris in an image of an eye, comprising steps of locating the pupil in the image, of detecting positions of intensity steps of pixels located on a line passing through the pupil and transition zones between the iris and the cornea, on either side of the pupil, and of determining the center and the radius of a circle passing through the detected positions of the transitions.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: December 4, 2012
    Assignees: STMicroelectronics Rousset SAS, Universite Paul Cezanne Aix Marseille III
    Inventors: Lionel Martin, Guillaume Petitjean, Stéphane Derrode, William Ketchantang
  • Publication number: 20080273763
    Abstract: The present disclosure relates to a method for locating the iris in an image of an eye, comprising steps of locating the pupil in the image, of detecting positions of intensity steps of pixels located on a line passing through the pupil and transition zones between the iris and the cornea, on either side of the pupil, and of determining the center and the radius of a circle passing through the detected positions of the transitions.
    Type: Application
    Filed: April 24, 2008
    Publication date: November 6, 2008
    Applicants: STMicroelectronics Rousset SAS, Universite Paul Cezanne Aix Marseille III
    Inventors: Lionel Martin, Guillaume Petitjean, Stephane Derrode, William Ketchantang
  • Patent number: 7382902
    Abstract: A method and a system for evaluating the definition of the image of an eye iris or the like, including approximately localizing the pupil in the image, defining, from the approximate position of the pupil, an examination window centered on this position, and applying a gradient accumulation operation to the luminance values of the pixels of the examination window, the running total being proportional to the definition score of the image.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: June 3, 2008
    Assignee: STMicroelectronics S.A.
    Inventors: Christel-Loïc Tisse, Laurent Plaza, Guillaume Petitjean
  • Patent number: 7319754
    Abstract: A method and a circuit for marking with a binary code a video sequence compressed by motion calculation, from one picture to another, of macroblocks dividing each picture, the digital pictures being distributed in at least two categories according to whether they are coded integrally or by the motion vectors of the macroblocks with respect to the previous picture or to the previous and next pictures, which includes, at least for the pictures coded by motion vectors, only marking the macroblocks for which the motion vectors are greater than a predetermined threshold.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: January 15, 2008
    Assignee: STMicroelectronics S.A.
    Inventor: Guillaume Petitjean
  • Patent number: 7295678
    Abstract: A method and a system for inserting at least one binary code in a digital image, including converting the code into a modification of contours of objects in the image.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: November 13, 2007
    Assignee: STMicroelectronics S.A.
    Inventor: Guillaume Petitjean
  • Publication number: 20070047773
    Abstract: A method of digital processing of an image of the iris of an eye or the like, including at least a first filtering step corresponding to a morphological closing by a first structuring element corresponding to a disk having a radius in number of pixels approximately corresponding to the thickness of an eyelash in the image, and a second filtering step corresponding to a morphological opening of the image resulting from the previous step by a second structuring element corresponding to a disk having a radius in number of pixels ranging between two and five times that of the disk of the first step.
    Type: Application
    Filed: August 30, 2006
    Publication date: March 1, 2007
    Applicants: STMicroelectronics S.A., Universite Paul Cezanne Aix Marseille III
    Inventors: Lionel Martin, Guillaume Petitjean, William Ketchantang
  • Publication number: 20040252866
    Abstract: A method for generating a typical image including at least three values per pixel, based on a set of binary images all showing a same element, including: summing up the binary values of the pixels of same coordinates in the set of binary images; generating a first state in the typical image if the sum of the pixels of same coordinates of the binary images provides a value smaller than a first threshold; and generating a second state in the typical image if the sum of the pixels of same coordinates of the binary images provides a value greater than a second threshold.
    Type: Application
    Filed: June 9, 2004
    Publication date: December 16, 2004
    Inventors: Christel-Loic Tisse, Guillaume Petitjean
  • Publication number: 20040101169
    Abstract: A method and a system determine a score characteristic of the definition of a digital imageby cumulating the quadratic norm of horizontal and vertical gradients of luminance values of pixels of the image, the pixels being chosen at least according to a first maximum luminance threshold of other pixels in the concerned direction.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 27, 2004
    Applicant: STMicroelectronics S.A.
    Inventors: Christel-Loic Tisse, Laurent Plaza, Guillaume Petitjean
  • Publication number: 20040101170
    Abstract: A method and a system for evaluating the definition of the image of an eye iris or the like, consisting of approximately localizing the pupil in the image, defining, from the approximate position of the pupil, an examination window centered on this position, and applying a gradient accumulation operation to the luminance values of the pixels of the examination window, the running total being proportional to the definition score of the image.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 27, 2004
    Inventors: Christel-Loic Tisse, Laurent Plaza, Guillaume Petitjean
  • Publication number: 20040091108
    Abstract: A method and a circuit for marking with a binary code a video sequence compressed by motion calculation, from one picture to another, of macroblocks dividing each picture, the digital pictures being distributed in at least two categories according to whether they are coded integrally or by the motion vectors of the macroblocks with respect to the previous picture or to the previous and next pictures, which consists, at least for the pictures coded by motion vectors, of only marking the macroblocks for which the motion vectors are greater than a predetermined threshold.
    Type: Application
    Filed: June 26, 2003
    Publication date: May 13, 2004
    Inventor: Guillaume Petitjean
  • Publication number: 20030048924
    Abstract: A method and a system for inserting at least one binary code in a digital image, including converting the code into a modification of contours of objects in the image.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 13, 2003
    Inventor: Guillaume Petitjean