Imagerie Hyperspectrale Active Appliquée à la Caractérisation des Sols Contaminés au TNT

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Authors
  1. Simard, J-R.
  2. Christnacher, F.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN);Institut Franco-Allemand de Recherches, Saint-Louis (France)
Abstract
For over 10 years, two technologies have demonstrated significant capabilities in surveillance, search and rescue, and remote sensing: active imaging and hyperspectral imaging. This report aims to evaluate the capacity of a new technique combining the advantages of those two technologies: active hyperspectral imaging. This new technique sends short but powerful artificial light pulses at a site and detects the spectral content of the reflected light with intensification imaging techniques. With this approach, the lack of dependence on natural light conditions and the induced spectral information resulting from specifically selected light sources increase the types of information generated and the diversity of conditions under which they can be obtained. Two objectives are pursued: to define the basic concepts and the limits of validity associated with active hyperspectral imaging, and to develop a working model based on simple parameters that seeks to predict the sensitivity required to detect targets of interest. This model is evaluated experimentally by monitoring the spectral signatures of the fluorescence induced in plants during their growth when contaminated with TNT concentrations varying from 1 part per billion to 1000 parts per million. Two prototypes were used for this investigation: one developed by DRDC Valcartier and the second developed by ISL. A correlation between the spectral signature of the induced fluorescence of the grass and the level of soil contaminati

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Report Number
DRDC-VALCARTIER-TM-2004-240 — Technical Memorandum
Date of publication
01 Aug 2006
Number of Pages
88
DSTKIM No
CA027840
CANDIS No
525705
Format(s):
CD ROM

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