Patents by Inventor Philippe Simard

Philippe Simard 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 and system for detecting and evaluating 3D changes from images and a 3D reference model
    Patent number: 7764284
    Abstract: In a method and system for aligning first and second images with a 3D reference model, the first image is gathered from a first viewpoint, the second image is gathered from a second viewpoint and the first and second images are aligned with the 3D reference model. The image alignment comprises computing prediction error information using the first and second images and the 3D reference model, and minimizing the prediction error. A method and system for detecting and localizing 3D changes in a scene use the above method and system for aligning first and second images with a 3D reference model, determine, in response to the prediction error information and for a model feature of the 3D reference model, whether the prediction error is greater than a selected threshold, and identify the model feature as a 3D change when the prediction error is greater than the selected threshold.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: July 27, 2010
    Assignee: Simactive Inc.
    Inventors: Philippe Simard, Louis Simard
  • Method and System for Detecting and Evaluating 3D Changes from Images and a 3D Reference Model
    Publication number: 20080297502
    Abstract: In a method and system for aligning first and second images with a 3D reference model, the first image is gathered from a first viewpoint, the second image is gathered from a second viewpoint and the first and second images are aligned with the 3D reference model. The image alignment comprises computing prediction error information using the first and second images and the 3D reference model, and minimizing the prediction error. A method and system for detecting and localizing 3D changes in a scene use the above method and system for aligning first and second images with a 3D reference model, determine, in response to the prediction error information and for a model feature of the 3D reference model, whether the prediction error is greater than a selected threshold, and identify the model feature as a 3D change when the prediction error is greater than the selected threshold.
    Type: Application
    Filed: May 24, 2005
    Publication date: December 4, 2008
    Inventors: Philippe Simard, Louis Simard