System and method for safer detection of unknown materials using dual polarized hyperspectral imaging and Raman spectroscopy
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United States of America Patent
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Jun 3, 2014
Grant Date -
May 1, 2014
app pub date -
Mar 15, 2013
filing date -
Nov 10, 2011
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Abstract
A first location comprising an unknown material may be scanned using SWIR hyperspectral imaging in a dual polarization configuration. Surveying may also be applied to thereby determine whether or not a human is present. This surveying may be achieved my assessing LWIR data, data acquired from motion sensors, and combinations thereof. If no human is present, a second location may be interrogated using Raman spectroscopic techniques to thereby obtain a Raman data set representative of the region of interest. This Raman data set may be assessed to associate an unknown material with a known material. This assessment may be achieved by comparing the Raman data set to one or more reference data sets in a reference database, where each reference data set is associated with a known material.
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