Multispectral biometric sensor
First Claim
Patent Images
1. A sensor system comprising:
- an illumination subsystem disposed to provide illumination light to a skin site of an individual;
a detection subsystem disposed to receive light scattered from the skin site; and
a computational unit interfaced with the detection subsystem and having;
instructions for deriving a plurality of spatially distributed multispectral images from the received light, the plurality of spatially distributed multispectral images corresponding to different volumes of illuminated tissue of the individual; and
instructions for identifying the individual from the derived plurality of multispectral images.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and systems are provided for biometric sensing. An illumination subsystem provides light at discrete wavelengths to a skin site of an individual. A detection subsystem receives light scattered from the skin site. A computational unit is interfaced with the detection system. The computational unit has instructions for deriving a spatially distributed multispectral image from the received light at the discrete wavelengths. The computational unit also has instructions for comparing the derived multispectral image with a database of multispectral images to identify the individual.
-
Citations
109 Claims
-
1. A sensor system comprising:
-
an illumination subsystem disposed to provide illumination light to a skin site of an individual;
a detection subsystem disposed to receive light scattered from the skin site; and
a computational unit interfaced with the detection subsystem and having;
instructions for deriving a plurality of spatially distributed multispectral images from the received light, the plurality of spatially distributed multispectral images corresponding to different volumes of illuminated tissue of the individual; and
instructions for identifying the individual from the derived plurality of multispectral images. - View Dependent Claims (2, 3, 4, 5, 6, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 108)
-
-
7-8. -8. (canceled)
-
10-13. -13. (canceled)
-
24. (canceled)
-
26-29. -29. (canceled)
-
30. A method for identifying an individual, the method comprising:
-
illuminating a skin site of the individual with illumination light;
receiving light scattered from the skin site;
deriving a plurality of spatially distributed multispectral image from the received light, the plurality of spatially distributed multispectral images corresponding to different volumes of illuminated tissue of the individual; and
identifying the individual from the derived plurality of multispectral images. - View Dependent Claims (31, 32, 34, 35, 36, 38, 39, 47, 49, 50, 109)
-
-
33. (canceled)
-
37. (canceled)
-
40-46. -46. (canceled)
-
48. (canceled)
-
51-107. -107. (canceled)
Specification