13 August 2002 Physically based simulation of passive polarimetric IR mine signatures
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Abstract
A numerical model for polarimetric signatures of surface-laid land mines is presented. The model simulates high-resolution images formed from Stokes parameters that describe thermal emission and reflection of sunlight and skylight. The temperature of the mine and its surroundings is computed as a function of time using a finite element solution of the heat transport equation. The effects of surface roughness are included via a two-scale model, in which the gross shape of the mine is represented by triangular facets (the surface facets of the finite element tetrahedra). Theoretical solutions for rough surface scattering are used to describe small-scale roughness on a facet. Multiply reflected contributions are neglected in the current implementation. An example is presented in which the role of each component is described and related to the observed image.
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Brian A. Baertlein, Joel Tidmore Johnson, "Physically based simulation of passive polarimetric IR mine signatures", Proc. SPIE 4742, Detection and Remediation Technologies for Mines and Minelike Targets VII, (13 August 2002); doi: 10.1117/12.479107; https://doi.org/10.1117/12.479107
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