Systems and methods for improved biometric feature definition
First Claim
1. A method of performing a biometric function, the method comprising:
- illuminating a purported skin site of an individual under a plurality of distinct optical conditions during a single illumination session for a substantially fixed position of the purported skin site;
receiving light from the purported skin site for each of the plurality of distinct optical conditions;
generating a plurality of images of the purported skin site from the received light;
analyzing the plurality of images to identify a biometric feature as a characteristic in a portion of at least one of the images; and
implementing the biometric function in accordance with an identification of the biometric feature.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and systems are provided for performing a biometric function. A purported skin site of an individual is illuminated under distinct optical conditions during a single illumination session for a fixed position of the purported skin site. Light from the purported skin site is received for each of the optical conditions. Images of the purported skin site are generated from the received light. The images are analyzed to identify a biometric feature as a characteristic in a portion of at least one of the images. The biometric function is implemented in accordance with an identification of the biometric feature.
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Citations
30 Claims
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1. A method of performing a biometric function, the method comprising:
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illuminating a purported skin site of an individual under a plurality of distinct optical conditions during a single illumination session for a substantially fixed position of the purported skin site;
receiving light from the purported skin site for each of the plurality of distinct optical conditions;
generating a plurality of images of the purported skin site from the received light;
analyzing the plurality of images to identify a biometric feature as a characteristic in a portion of at least one of the images; and
implementing the biometric function in accordance with an identification of the biometric feature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A biometric system comprising:
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a platen adapted for placement of a purported skin site by an individual;
an illumination source disposed to illuminate the purported skin site when placed on the platen;
an imaging system disposed to receive light from the purported skin site; and
a controller interfaced with the illumination source and the imaging system, the controller including;
instructions to illuminate the purported skin site with the illumination source under a plurality of distinct optical conditions during a single illumination session for a substantially fixed position of the purported skin site;
instructions to generate a plurality of images of the purported skin site from light received by the imaging system;
instructions to analyze the plurality of images to identify a biometric feature as a characteristic in a portion of at least one of the images; and
instructions to implement a biometric function in accordance with an identification of the biometric feature. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification