Multispectral biometric imaging

Details Multispectral biometric imaging Multispectral biometric imaging

2008-07-01

2008-07-01

Wu, Jingge (Department: 2624)

Image analysis

Applications

Personnel identification

C382S124000, C340S005530, C340S005830, C356S071000

Reexamination Certificate

active

11115101

ABSTRACT:
Methods and systems are provided for performing a biometric measurement on an individual. A purported skin site of the individual disposed relative to a platen is illuminated under distinct optical conditions during a single illumination session. At least one of the optical conditions includes illuminating the purported skin site with light at an angle greater than a critical angle defined by an interface of the platen with an external environment. At least another of the distinct optical conditions includes illuminating the purported skin site with light at an angle less than the critical angle. Light scattered from the purported skin site is received separately for each of multiple optical conditions to derive a multispectral image of the purported skin site.

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