27 September 2013 SWIR active polarization imaging for material identification
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Abstract
Nighttime active SWIR imaging has resolution, size, weight, and power consumption advantages over passive MWIR and LWIR imagers for applications involving target identification. We propose that the target discrimination capability of active SWIR systems can be extended further by exerting polarization control over the illumination source and imager, i.e. through active polarization imaging. In this work, we construct a partial Mueller matrix imager and use laboratory derived signatures to uniquely identify target materials in outdoor scenes. This paper includes a description of the camera and laser systems as well as discussion of the reduction and analysis techniques used for material identification.
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Daniel A. LeMaster, Daniel A. LeMaster, Adoum H. Mahamat, Adoum H. Mahamat, Bradley M. Ratliff, Bradley M. Ratliff, Andrey S. Alenin, Andrey S. Alenin, J. Scott Tyo, J. Scott Tyo, Bradley M. Koch, Bradley M. Koch, } "SWIR active polarization imaging for material identification", Proc. SPIE 8873, Polarization Science and Remote Sensing VI, 88730O (27 September 2013); doi: 10.1117/12.2023351; https://doi.org/10.1117/12.2023351
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