×

Systems and methods of biometric analysis with a spectral discriminator

  • US 10,452,936 B2
  • Filed: 07/27/2017
  • Issued: 10/22/2019
  • Est. Priority Date: 01/12/2016
  • Status: Active Grant
First Claim
Patent Images

1. A biometric analysis system, comprising:

  • an illumination source configured to illuminate an iris of a subject;

    a spectral discriminator including a first optical filter having first set of pass characteristics and a second optical filter having second set of pass characteristics, the spectral discriminator configured to selectively receive light scattered from the iris through the first optical filter and the second optical filter;

    a camera configured to capture one or more images of the subject during passage of the light scattered from the iris through the first optical filter, and configured to capture one or more images of the subject during passage of the light scattered from the iris through the second optical filter; and

    means for receiving as input the captured one or more images of the subject during passage of the light scattered from the iris through the first optical filter and the second optical filter, and determining whether a match exists between iris structural information displayed in the one or more images of the subject during passage of the light scattered from the iris through the first optical filter and iris structural information displayed in the one or more images of the subject during passage of the light scattered from the iris through the second optical filter, existence of the match being indicative of a facsimile image.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×