Patents by Inventor Serge Alizon

Serge Alizon 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 calibrating a computer-based vision system onboard a craft
    Patent number: 9728005
    Abstract: This method of calibration comprising the reconstruction of a 3D mapping of 3D landmarks of an environment on the basis of digital images of the environment captured by the computer-based vision system (10) during the movement of the craft (2) along a trajectory. It comprises the optimization of at least one 3D mapping corresponding to a first sequence of images by considering at least one extrinsic parameter and/or at least one intrinsic parameter and/or at least one parameter of poses and/or one parameter of 3D landmarks as constant and the optimization of at least one 3D mapping corresponding to a second sequence of images, longer than the first image sequence and including the first image sequence, by considering said at least one extrinsic parameter and/or said at least one intrinsic parameter and/or said at least one parameter of poses and/or said at least one parameter of 3D landmarks as variable so as to estimate it.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: August 8, 2017
    Assignees: Universite D' Auvergne Clermont I, Universite Blaise Pascal-Clermong II, Centre National De La Recherche Scientifique (C.N.R.S.)
    Inventors: Michel Dhome, Eric Royer, Maxime Lhuillier, Datta Ramadasan, Nadir Karam, Clément Deymier, Vadim Litvinov, Hicham Hadj Abdelkader, Thierry Chateau, Jean-Mare Lavest, François Marmoiton, Serge Alizon, Laurent Malaterre, Pierre Lebraly
  • METHOD OF CALIBRATING A COMPUTER-BASED VISION SYSTEM ONBOARD A CRAFT
    Publication number: 20140267608
    Abstract: This method of calibration comprising the reconstruction of a 3D mapping of 3D landmarks of an environment on the basis of digital images of the environment captured by the computer-based vision system (10) during the movement of the craft (2) along a trajectory. It comprises the optimization of at least one 3D mapping corresponding to a first sequence of images by considering at least one extrinsic parameter and/or at least one intrinsic parameter and/or at least one parameter of poses and/or one parameter of 3D landmarks as constant and the optimization of at least one 3D mapping corresponding to a second sequence of images, longer than the first image sequence and including the first image sequence, by considering said at least one extrinsic parameter and/or said at least one intrinsic parameter and/or said at least one parameter of poses and/or said at least one parameter of 3D landmarks as variable so as to estimate it.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 18, 2014
    Inventors: Michel Dhome, Eric Royer, Maxime Lhuilier, Datta Ramadasan, Nadir Karam, Clément Deymier, Vadim Litvinov, Hicham Hadj Abdelkader, Thierry Chateau, Jean-Mare Lavest, François Marmoiton, Serge Alizon, Laurent Malatere, Pierre Lebraly