Development of a terrain surface model for optical property computation

J. Michael Cathcart

doi:10.1117/12.720767

3 May 2007 Development of a terrain surface model for optical property computation

J. Michael Cathcart

Proceedings Volume 6553, Detection and Remediation Technologies for Mines and Minelike Targets XII; 655317 (2007) https://doi.org/10.1117/12.720767
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

In this paper we discuss our efforts to develop a digital hyperspectral signature model for terrain features. These efforts focused on developing models for the optical and infrared properties of soils and vegetation features. A detailed geometric model of the particulate soil surface is combined with radiative transport algorithms to compute emissive and reflective properties of terrain surfaces. These models support analysis of environmental effects on terrain signatures, signature generation to support object detection algorithm development, and terrain clutter characterization. Environmental effects modeled and studied include solar insolation, wind, soil particle size distributions, and soil constituents. The particulate nature of the soil surface is shown to significantly impact the optical properties. A discussion of the terrain modeling approach, the underlying analytical basis, the methodology for modeling solar absorptivity, and results from the model computations will be presented.

Citation Download Citation

J. Michael Cathcart "Development of a terrain surface model for optical property computation", Proc. SPIE 6553, Detection and Remediation Technologies for Mines and Minelike Targets XII, 655317 (3 May 2007); https://doi.org/10.1117/12.720767

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