Hyperspectral imaging using AOTF and NIR sensing of buried objects and landmines

Joel Mobley; Gordon H. Miller; Paul M. Kasili; Charles A. DiMarzio; Tuan Vo-Dinh

doi:10.1117/12.339010

10 February 1999 Hyperspectral imaging using AOTF and NIR sensing of buried objects and landmines

Joel Mobley, Gordon H. Miller, Paul M. Kasili, Charles A. DiMarzio, Tuan Vo-Dinh

Proceedings Volume 3534, Environmental Monitoring and Remediation Technologies; (1999) https://doi.org/10.1117/12.339010
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

The detection of landmines and buried objects requires methods that can cover large areas rapidly while providing the required sensitivity to detect the optical and spectroscopic contrasts in soil properties that can reveal their presence. These conditions on contrast and coverage can be met by capturing images of the soil at wavelengths which are sensitive to the properties modified by the presence of buried objects. In this work we investigate both imaging and scanning methods which may have some utility for the detection problem. In the imaging approach, we capture hyperspectral reflection images using an acousto-optic tunable filter (AOTF) and fluorescence images using a long-pass filter. For the scanning method, we acquire data point-by-point over a two-dimensional grid with a single emitter/detector pair. The results illustrate the potential of these two approaches for detection of landmines and buried objects.

Citation Download Citation

Joel Mobley, Gordon H. Miller, Paul M. Kasili, Charles A. DiMarzio, and Tuan Vo-Dinh "Hyperspectral imaging using AOTF and NIR sensing of buried objects and landmines", Proc. SPIE 3534, Environmental Monitoring and Remediation Technologies, (10 February 1999); https://doi.org/10.1117/12.339010

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