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Partial differential equation model for image feature extraction and identification

  • US 7,020,591 B1
  • Filed: 01/15/2002
  • Issued: 03/28/2006
  • Est. Priority Date: 09/05/2001
  • Status: Expired due to Term
First Claim
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1. A method performed by a computer for generating a geometric pattern from an image having a plurality of ridges and mesh points, the method comprising the steps of:

  • forming a partial differential equation by transferring values for positions in the image to corresponding coefficients of the partial differential equation;

    determining simultaneous difference equations corresponding to the partial differential equation and the image mesh points;

    solving the simultaneous difference equations; and

    mapping the solutions of the simultaneous difference equations to respective positions on the image to determine features of the image.

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