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Optical coin discrimination systems and methods for use with consumer-operated kiosks and the like

  • US 9,036,890 B2
  • Filed: 06/05/2012
  • Issued: 05/19/2015
  • Est. Priority Date: 06/05/2012
  • Status: Active Grant
First Claim
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1. A method for identifying coins, the method comprising:

  • obtaining a first image of a coin;

    generating a second image from the first image;

    transforming the second image to a 2D third image using a 2D Fourier transform;

    identifying at least one of a location and an intensity of a spectral peak in the 2D third image; and

    comparing at least one of the location and the intensity of the spectral peak in the 2D third image to at least one known coin property.

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