15 November 1993 Early work in infrared imaging of underground and obscured objects
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Abstract
Several research programs aimed at infrared detection of underground and/or obscured objects were done by the Willow Run Laboratories of The University of Michigan in the 1960's. Airborne infrared line scanners were the major tools for field work. Examples discussed include: detection of concealed ice crevasses; delineation of volcanic thermal sub-structures; detection of small, hot fires under heavy canopy; imaging of underground voids leading to sink-holes in Florida; thermal imaging of ocean fronts; and thermal mapping of water-land boundaries beneath meters of snow.
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George J. Zissis, George J. Zissis, "Early work in infrared imaging of underground and obscured objects", Proc. SPIE 1942, Underground and Obscured Object Imaging and Detection, (15 November 1993); doi: 10.1117/12.160351; https://doi.org/10.1117/12.160351
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