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Image compression to enhance optical correlation

  • US 20030169928A1
  • Filed: 03/08/2002
  • Published: 09/11/2003
  • Est. Priority Date: 03/08/2002
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving a reference image having a reference feature and a comparison image having a comparison feature;

    compressing the reference image and the comparison image with a substantially linear phase, symmetrical coding to generate coefficients for the images, wherein a difference between the coefficients is substantially similar to a difference between the reference feature and the comparison feature; and

    displaying the coefficients as coherent images at an input plane for optical correlation.

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