Ms. Mary D. O'Neill Profile

Mary D. O'Neill

at National Security Technologies LLC

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Proceedings Article | 21 May 2015 Paper

Rugged target standards for HSI remote sensing

Mark Morey, Mary O'Neill, Mark Hahn, John DiBenedetto

Proceedings Volume 9461, 94611N (2015) https://doi.org/10.1117/12.2184820

KEYWORDS: Particles, Short wave infrared radiation, Long wavelength infrared, Sulfur, Minerals, Standards development, Carbonates, Talc, Remote sensing, Calcite

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There is a need for stable test standards for many remote sensing applications that can be used both in the laboratory and in rugged test environments. Ideally these standards would be stable over time such that the same standard could be used from year to year for comparison of system performance. While ink-jet and spray gun methods can disperse controlled doses of dissolved analytes, methods to maintain particle size spectral variations are lacking. In addition, standards that are environmentally robust and stable over time are limited. As part of the recent Lighthouse work toward a Hyperspectral Imagery (HSI) proximal handheld sensor, Special Technologies Laboratory (STL) was tasked to do preliminary work toward a rugged, transportable, waterproof target board. This involved developing test standards using minerals of known particle sizes that have spectrally relevant features. Mineral powders were dispersed in binders that did not change their spectral characteristics. These standards were packaged such that they could be transported and used repeatedly. This paper discusses the methodology for developing this preliminary set of targets. Target sizes were limited to the proximal case, and further work is required to finalize the optimum binder and examine other possible appropriate minerals.

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