Detection of abandoned mines/caves using airborne LWIR hyperspectral data

Sylvia S. Shen; Kurt A. Roettiger

doi:10.1117/12.946113

19 October 2012 Detection of abandoned mines/caves using airborne LWIR hyperspectral data

Sylvia S. Shen, Kurt A. Roettiger

Proceedings Volume 8515, Imaging Spectrometry XVII; 85150D (2012) https://doi.org/10.1117/12.946113
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

The detection of underground structures, both natural and man-made, continues to be an important requirement in both the military/intelligence and civil communities. There are estimates that as many as 70,000 abandoned mines/caves exist across the nation. These mines represent significant hazards to public health and safety, and they are of concern to Government agencies at the local, state, and federal levels. NASA is interested in the detection of caves on Mars and the Moon in anticipation of future manned space missions. And, the military/ intelligence community is interested in detecting caves, mines, and other underground structures that may be used to conceal the production of weapons of mass destruction or to harbor insurgents or other persons of interest by the terrorists. Locating these mines/caves scattered over millions of square miles is an enormous task, and limited resources necessitate the development of an efficient and effective broad area search strategy using remote sensing technologies. This paper describes an internally-funded research project of The Aerospace Corporation (Aerospace) to assess the feasibility of using airborne hyperspectral data to detect abandoned cave/mine entrances in a broad-area search application. In this research, we have demonstrated the potential utility of using thermal contrast between the cave/mine entrance and the ambient environment as a discriminatory signature. We have also demonstrated the use of a water vapor absorption line at12.55 μm and a quartz absorption feature at 9.25 μm as discriminatory signatures. Further work is required to assess the broader applicability of these signatures.

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Sylvia S. Shen and Kurt A. Roettiger "Detection of abandoned mines/caves using airborne LWIR hyperspectral data", Proc. SPIE 8515, Imaging Spectrometry XVII, 85150D (19 October 2012); https://doi.org/10.1117/12.946113

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KEYWORDS

Mining

Long wavelength infrared

Absorption

Land mines

Atmospheric corrections

Aerospace engineering

Detection and tracking algorithms

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