Using linear polarization for LWIR hyperspectral sensing of liquid contaminants

Jean-Marc Thériault; Gilles Fortin; Paul Lacasse; François Bouffard; Hugo Lavoie

doi:10.1117/12.2026810

27 September 2013 Using linear polarization for LWIR hyperspectral sensing of liquid contaminants

Jean-Marc Thériault, Gilles Fortin, Paul Lacasse, François Bouffard, Hugo Lavoie

Proceedings Volume 8873, Polarization Science and Remote Sensing VI; 88730I (2013) https://doi.org/10.1117/12.2026810
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

We report and analyze recent results obtained with the MoDDIFS sensor (Multi-option Differential Detection and Imaging Fourier Spectrometer) for the passive polarization sensing of liquid contaminants in the long wave infrared (LWIR). Field measurements of polarized spectral radiance done on ethylene glycol and SF96 probed at distances of 6.5 and 450 meters, respectively, have been used to develop and test a GLRT-type detection algorithm adapted for liquid contaminants. The GLRT detection results serve to establish the potential and advantage of probing the vertical and horizontal linear hyperspectral polarization components for improving liquid contaminants detection.

Citation Download Citation

Jean-Marc Thériault, Gilles Fortin, Paul Lacasse, François Bouffard, and Hugo Lavoie "Using linear polarization for LWIR hyperspectral sensing of liquid contaminants", Proc. SPIE 8873, Polarization Science and Remote Sensing VI, 88730I (27 September 2013); https://doi.org/10.1117/12.2026810

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