Patents Assigned to Cogent Systems, Inc
  • Partial differential equation model for image feature extraction and identification
    Patent number: 7020591
    Abstract: In one embodiment, the invention is a method for generating geometric patterns from an image having a plurality of ridges and mesh points. The method comprising the steps of: establishing a mathematical model according to regional conditions in the image; converting the mathematical model into numerical equations; solving the numerical equations; and transferring the solutions of the numerical equations to respective regions of the image.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: March 28, 2006
    Assignee: Cogent Systems, Inc
    Inventors: Xiangshu Wei, Ming Hsieh