Patents by Inventor Giovanni Presti

Giovanni Presti 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 for determining scattered disparity fields in stereo vision
    Patent number: 8275195
    Abstract: In a system for stereo vision including two cameras shooting the same scene, a method is performed for determining scattered disparity fields when the epipolar geometry is known, which includes the steps of: capturing, through the two cameras, first and second images of the scene from two different positions; selecting at least one pixel in the first image, the pixel being associated with a point of the scene and the second image containing a point also associated with the above point of the scene; and computing the displacement from the pixel to the point in the second image minimizing a cost function, such cost function including a term which depends on the difference between the first and the second image and a term which depends on the distance of the above point in the second image from a epipolar straight line, and a following check whether it belongs to an allowability area around a subset to the epipolar straight line in which the presence of the point is allowed, in order to take into account errors
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: September 25, 2012
    Assignee: Telecom Italia S.p.A.
    Inventors: Gianluca Francini, Skjalg Lepsoy, Giovanni Presti
  • Method for Determining Scattered Disparity Fields in Stereo Vision
    Publication number: 20090207235
    Abstract: In a system for stereo vision including two cameras shooting the same scene, a method is performed for determining scattered disparity fields when the epipolar geometry is known, which includes the steps of: capturing, through the two cameras, first and second images of the scene from two different positions; selecting at least one pixel in the first image, the pixel being associated with a point of the scene and the second image containing a point also associated with the above point of the scene; and computing the displacement from the pixel to the point in the second image minimising a cost function, such cost function including a term which depends on the difference between the first and the second image and a term which depends on the distance of the above point in the second image from a epipolar straight line, and a following check whether it belongs to an allowability area around a subset to the epipolar straight line in which the presence of the point is allowed, in order to take into account errors
    Type: Application
    Filed: November 30, 2005
    Publication date: August 20, 2009
    Inventors: Gianluca Francini, Skjalg Lepsoy, Giovanni Presti