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Infrared absorption bands measured with an uncooled interferometric LWIR hyperspectral camera
Author(s): Thomas Svensson; Tomas Hallberg
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Paper Abstract

This paper presents stand-off measurements with an interferometric LWIR hyperspectral camera, which is based on a corner-cube Michelson interferometer and an uncooled micro-bolometer. Spectrally resolved image data may provide a more robust discrimination and, moreover, the ability to also classify and identify materials. This is however dependent on three parameters: instrument, source intensity and vibrational bands. Strong vibrational bands in LWIR can be found in minerals (solid, crystalline substances), textile fibers (polymers) and hazardous substances like toxic chemicals and explosives (smaller molecules). Spectral bands measured e.g. in textile polymers may be used in applications such as discrimination and identification of camouflage. Experimental setups and measured vibrational bands are presented, along with interpretations of vibrational frequencies in LWIR.

Paper Details

Date Published: 8 May 2018
PDF: 15 pages
Proc. SPIE 10644, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXIV, 106440Y (8 May 2018); doi: 10.1117/12.2305915
Show Author Affiliations
Thomas Svensson, FOI-Swedish Defence Research Agency (Sweden)
Tomas Hallberg, FOI-Swedish Defence Research Agency (Sweden)


Published in SPIE Proceedings Vol. 10644:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXIV
Miguel Velez-Reyes; David W. Messinger, Editor(s)

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