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MULTI-SPECTRAL ULTRASONIC IMAGING

  • US 20160350573A1
  • Filed: 03/05/2015
  • Published: 12/01/2016
  • Est. Priority Date: 03/06/2014
  • Status: Active Grant
First Claim
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1. A method of scanning a finger, comprising:

  • scanning a finger positioned on an imaging surface of an ultrasonic sensor with a plurality of ultrasonic scan frequencies;

    generating an ultrasonic image information set from a plurality of pixels of the ultrasonic sensor for each of the scan frequencies, the image information set including a pixel output value from each of the plurality of pixels, each pixel output value indicating an amount of energy reflected from the imaging surface; and

    combining the image information sets corresponding to each of the scan frequencies to generate a combined image information set, the combined image information set including combined pixel output values from each of the plurality of pixels.

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