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Optical Engineering • Open Access

Soil signature simulation in the thermal infrared
Author(s): Tyler Carson; Carl Salvaggio

Paper Abstract

Soil emissivity signatures were constructed using the digital imaging and remote sensing image generation (DIRSIG) model and Blender three-dimensional (3-D) graphic design software. Using these tools, the geometry, radiometry, and chemistry of quartz were exploited to model the presence of particle size effects in the thermal spectra of disturbed soil. Using the physics engines within the Blender 3-D graphic design software, a physical representation of a granular soil scene was created. Chemical and optical properties of pure quartz were assigned to particles in the scene based on particle size. The spectral signature of disturbed soil was modeled by the physical mixture of small fine particles (50  μm diameter) and larger grains (500  μm diameter). The study demonstrated that by combining realistic target geometry and spectral measurements of pure quartz, emissivity of complex soil mixtures could be modeled without functional data fitting or rigorous analysis of material dynamics.

Paper Details

Date Published: 6 October 2015
PDF: 6 pages
Opt. Eng. 54(10) 104102 doi: 10.1117/1.OE.54.10.104102
Published in: Optical Engineering Volume 54, Issue 10
Show Author Affiliations
Tyler Carson, Rochester Institute of Technology (United States)
Carl Salvaggio, Rochester Institute of Technology (United States)

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