Contactless multispectral biometric capture
First Claim
Patent Images
1. A contactless biometric system comprising:
- an illumination source configured to illuminate a target space with polarized light of a first polarization condition;
a first imager configured to receive light scattered from a purported skin site of an individual within at least a portion of the target space under the first polarization condition;
a second imager configured to simultaneously receive light scattered from the purported skin site within at least a portion of the target space under a second polarization condition, wherein the second imager is distinct from the first imager, wherein the first polarization condition is distinct from the second polarization condition; and
an analyzer communicatively coupled with the illumination source, the first imager, and the second imager, wherein the analyzer is configured to control the operation of the illumination source, the first imager, and the second imager in order to perform a biometric function based on the light received at the first imager and the second imager.
2 Assignments
0 Petitions
Accused Products
Abstract
A number of biometric systems and methods are disclosed. A system according to one embodiment includes an illumination subsystem, an imaging subsystem, and an analyzer. The illumination subsystem is disposed to illuminate a target space. The imaging subsystem is configured to image the target space under distinct optical conditions. The analyzer is provided in communication with the illumination subsystem, the imaging subsystem, and the three-dimensional subsystem. The analyzer also has instructions to operate the subsystems to collect substantially simultaneously a plurality of images of the object disposed at the predetermined spatial location under multispectral conditions.
362 Citations
20 Claims
-
1. A contactless biometric system comprising:
-
an illumination source configured to illuminate a target space with polarized light of a first polarization condition; a first imager configured to receive light scattered from a purported skin site of an individual within at least a portion of the target space under the first polarization condition; a second imager configured to simultaneously receive light scattered from the purported skin site within at least a portion of the target space under a second polarization condition, wherein the second imager is distinct from the first imager, wherein the first polarization condition is distinct from the second polarization condition; and an analyzer communicatively coupled with the illumination source, the first imager, and the second imager, wherein the analyzer is configured to control the operation of the illumination source, the first imager, and the second imager in order to perform a biometric function based on the light received at the first imager and the second imager. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A contactless biometric method comprising:
-
illuminating a skin site with polarized light of a first polarization condition; collecting light with the first polarization condition from the skin site; simultaneously collecting light with a second polarization condition from the skin site, wherein the second polarization condition is distinct from the first polarization condition; and performing a biometric function with the light collected with the first polarization condition and the second polarization condition. - View Dependent Claims (15, 16, 17, 18, 19)
-
-
20. A contactless biometric system comprising:
-
an illumination subsystem configured to illuminate a target space with polarized light of a first polarization condition; a first imager configured to receive light scattered from a purported skin site of an individual within at least a portion of the target space under the first polarization condition, wherein the skin site is not in physical contact with the biometric system; a second imager configured to simultaneously receive light scattered from the purported skin site within at least a portion of the target space under a second polarization condition, wherein the second imager is separate from the first imager, wherein the first polarization condition is distinct from the second polarization condition; and an analyzer communicatively coupled with the illumination source, the first imager, and the second imager, wherein the analyzer is configured to control the operation of the illumination source, the first imager, and the second imager in order to perform a biometric function based on the light received at the first imager and the second imager.
-
Specification