Patents by Inventor Youssef Benchekroun

Youssef Benchekroun 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).

  • Global and dense motion estimation
    Patent number: 8873809
    Abstract: The invention relates to a method which uses a series of images sensed by an image sensor including at least one preceding image and one following image to estimate movement. A first estimated movement is initially obtained by estimating the total movement from the preceding image to the following image. Next, an image compensated according to the first estimated movement is obtained from either one of the preceding and following images. Then, a second estimated movement is obtained by estimating dense movement between the compensated image and the other from the preceding and following images. Next, a residual value of global movement is determined. Finally, if the residual value is lower than a threshold value the second estimated movement is provided; otherwise, the preceding steps are repeated.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: October 28, 2014
    Assignee: Sagem Defense Securite
    Inventors: Frédéric Jacquelin, Joël Budin, Youssef Benchekroun
  • Global and Dense Motion Estimation
    Publication number: 20130142397
    Abstract: The invention relates to a method which uses a series of images sensed by an image sensor including at least one preceding image and one following image to estimate movement. A first estimated movement is initially obtained by estimating the total movement from the preceding image to the following image. Next, an image compensated according to the first estimated movement is obtained from either one of the preceding and following images. Then, a second estimated movement is obtained by estimating dense movement between the compensated image and the other from the preceding and following images. Next, a residual value of global movement is determined. Finally, if the residual value is lower than a threshold value the second estimated movement is provided; otherwise, the preceding steps are repeated.
    Type: Application
    Filed: January 4, 2011
    Publication date: June 6, 2013
    Applicant: Sagem Defense Securite
    Inventors: Frédéric Jacquelin, Joël Budin, Youssef Benchekroun