Patents Assigned to Matra Systems et Information
  • Patent number: 6175648
    Abstract: The method produces three dimensional cartographic data of a scene from n two-dimensional images of the scene, n being an integer higher than 2. The images are delivered by n respective detectors seeing the scene from different points of view. In a first step, each detector i is calibrated for estimating parameters identifying n affine models Fi (x, y, z) each defining a relation between coordinates x, y, z of any point in the scene and coordinates (p, q)i of a projection of said any point in an image i among said n images. Each of (n−1) couples of images, (each couple consisting of a same reference image selected among said n images) is matched, each match being made by searching an homolog of each of pixels or zones constituting the reference image along a corresponding epipolar line of the other image of the couple.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: January 16, 2001
    Assignee: Matra Systems et Information
    Inventors: Nicolas Ayache, David Canu, Jacques Ariel Sirat