Liveness sensor
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United States of America Patent
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Oct 21, 2008
Grant Date -
Jan 5, 2006
app pub date -
Jul 8, 2005
filing date -
Apr 4, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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