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Proceedings Paper

A dual wave infrared imaging polarimeter
Author(s): J. Larry Pezzaniti; Brett Hokr; Jenny F. Niles; Rich Edmondson; Michael Roche; Lisa Blackwell
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Paper Abstract

Detection of targets can be difficult using thermal camera during thermal cross-over periods. Under these conditions, the target takes on the apparent temperature of objects in the foreground or background and becomes undetectable. It is commonly said that the thermal imagery is “washed-out”. When the thermal contrast of an object against its background is zero, many times a polarization contrast of the same object is non-zero. In this paper, we introduce a camera that measures thermal and polarization images in both the mid-wave infrared (MWIR) and long-wave infrared (LWIR). We also show example images and derive a simple equation that explains the conditions under which a polarization signature of an object can be expected.

Paper Details

Date Published: 14 May 2018
PDF: 11 pages
Proc. SPIE 10655, Polarization: Measurement, Analysis, and Remote Sensing XIII, 106550X (14 May 2018); doi: 10.1117/12.2309973
Show Author Affiliations
J. Larry Pezzaniti, Polaris Sensor Technologies, Inc. (United States)
Brett Hokr, U.S. Army Space and Missile Defense Command (United States)
Jenny F. Niles, U.S. Army Space and Missile Defense Command (United States)
Rich Edmondson, Polaris Sensor Technologies, Inc. (United States)
Michael Roche, Polaris Sensor Technologies, Inc. (United States)
Lisa Blackwell, Polaris Sensor Technologies, Inc. (United States)


Published in SPIE Proceedings Vol. 10655:
Polarization: Measurement, Analysis, and Remote Sensing XIII
David B. Chenault; Dennis H. Goldstein, Editor(s)

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