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Proceedings Paper

Adaptive band selection snapshot multispectral imaging in the VIS/NIR domain
Author(s): Jean Minet; Jean Taboury; Michel Péalat; Nicolas Roux; Jacques Lonnoy; Yann Ferrec
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Paper Abstract

Hyperspectral imaging has proven its efficiency for target detection applications but the acquisition mode and the data rate are major issues when dealing with real-time detection applications. It can be useful to use snapshot spectral imagers able to acquire all the spectral channels simultaneously on a single image sensor. Such snapshot spectral imagers suffer from the lack of spectral resolution. It is then mandatory to carefully select the spectral content of the acquired image with respect to the proposed application. We present a novel approach of hyperspectral band selection for target detection which maximizes the contrast between the background and the target by proper optimization of positions and linewidths of a limited number of filters. Based on a set of tunable band-pass filters such as Fabry-Perot filters, the device should be able to adapt itself to the current scene and the target looked for. Simulations based on real hyperspectral images show that such snapshot imagers could compete well against hyperspectral imagers in terms of detection efficiency while allowing snapshot acquisition, and real-time detection.

Paper Details

Date Published: 11 October 2010
PDF: 10 pages
Proc. SPIE 7835, Electro-Optical Remote Sensing, Photonic Technologies, and Applications IV, 78350W (11 October 2010); doi: 10.1117/12.864578
Show Author Affiliations
Jean Minet, Lab. Charles Fabry, Institute d'Optique, CNRS, Univ. Paris-Sud (France)
Jean Taboury, Lab. Charles Fabry, Institute d'Optique, CNRS, Univ. Paris-Sud (France)
Michel Péalat, Sagem, Groupe Safran (France)
Nicolas Roux, Sagem, Groupe Safran (France)
Jacques Lonnoy, Sagem, Groupe Safran (France)
Yann Ferrec, ONERA (France)

Published in SPIE Proceedings Vol. 7835:
Electro-Optical Remote Sensing, Photonic Technologies, and Applications IV
Gary W. Kamerman; Gary J. Bishop; John D. Gonglewski; Ove Steinvall; Keith L. Lewis; Richard C. Hollins; Thomas J. Merlet, Editor(s)

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