Multispectral biometric sensors
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United States of America Patent
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Sep 21, 2010
Issued Date -
N/A
app pub date -
Apr 24, 2006
filing date -
Apr 27, 2005
priority date (Note) -
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Abstract
A biometric measurement system has a platen, an illumination source, a light detector, and a controller. The controller is interfaced with the illumination source and the light detector. The controller has instructions to illuminate a purported skin site of an individual under distinct optical conditions during a single illumination session while the purported skin site is moved over the platen. The controller also has instructions to derive a multispectral image of the purported skin site from light received by the light detector after scattering from the purported skin site for multiple distinct optical conditions while the purported skin site is moved over the platen.
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