Optical biometrics imaging with films
AssigneeLumidigm, Inc.
InventorRobert K. Rowe
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Abstract
Methods and systems are provided for performing a biometric measurement on an individual. A purported skin site of the individual is illuminated under a plurality of distinct optical conditions during a single illumination session. Light scattered beneath a surface of the purported skin site is received separately for each of the plurality of distinct optical conditions. A multispectral image of the purported skin site is derived from the received light. A biometric function is performed with the derived multispectral image.
Claims20
A biometric measurement system comprising:
- a platen;
- a thin film;
- an illumination source disposed to illuminate a skin site positioned over the platen in a configuration in which the thin film is disposed between the platen and the skin site;
- an imaging system disposed to receive light scattered from the skin site;
- and
- a controller interfaced with the illumination source and the imaging system, the controller including:
- instructions to illuminate the skin site through the thin film under a plurality of distinct optical conditions during a single illumination session;
- instructions to derive an image of the skin site from light received by the imaging system with direct imaging according to the distinct optical conditions;
- and
- instructions to perform a biometric function with the derived image.
A method of performing a biometric measurement on an individual, the method comprising:
- illuminating a skin site of the individual under a plurality of distinct optical conditions, wherein the skin site is positioned over a platen in a configuration in which a thin film is disposed between the platen and the skin site;
- receiving light scattered from the skin site with an imaging system using direct imaging;
- deriving an image of the skin site from the received light according to the distinct optical conditions;
- and
- performing a biometric function with the derived image.
Dependencies are inferred from the claim text.