Modeling the spectral variability of ground irradiance functions

Zhihong Pan; Glenn Healey; David Slater

doi:10.1117/12.410378

23 August 2000 Modeling the spectral variability of ground irradiance functions

Zhihong Pan, Glenn Healey, David Slater

Proceedings Volume 4049, Algorithms for Multispectral, Hyperspectral, and Ultraspectral Imagery VI; (2000) https://doi.org/10.1117/12.410378
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

We analyze a set of 7,258 0.4-2.2 micron ground spectral irradiance functions measured on different days over a wide range of conditions. We show that a low-dimensional linear model can be used to capture the variability in these measurements. Using this linear model, we compare the data with a previous empirical study. We also examine the agreement of the data with spectra generated by MODTRAN 4.0. Using a database of 224 materials, we consider the implications of the observed spectral variability for hyperspectral material discrimination using subspace projection techniques.

Citation Download Citation

Zhihong Pan, Glenn Healey, and David Slater "Modeling the spectral variability of ground irradiance functions", Proc. SPIE 4049, Algorithms for Multispectral, Hyperspectral, and Ultraspectral Imagery VI, (23 August 2000); https://doi.org/10.1117/12.410378

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