Exploiting MODTRAN radiation transport for atmospheric correction: The FLAASH algorithm

Author

Berk, A. ; Adler-Golden, S.M. ; Ratkowski, A.J. ; Felde, G.W. ; Anderson, G.P. ; Hoke, M.L. ; Cooley, T. ; Chetwynd, J.H. ; Gardner, J.A. ; Matthew, M.W. ; Bernstein, Lawrence S. ; Acharya, P.K. ; Miller, D. ; Lewis, P.

Author_Institution

Spectral Sci., Inc, Burlington, MA, USA

Volume

2

fYear

2002

fDate

8-11 July 2002

Firstpage

798

Abstract

Terrain categorization and target detection algorithms applied to hyperspectral imagery (HSI) typically operate on the measured reflectance (of sun and sky illumination) by an object or scene. Since the reflectance is a non-dimensional ratio, the reflectance by an object is nominally not affected by variations in lighting conditions. Atmospheric correction (referred to as atmospheric compensation, characterization, etc.) algorithms (ACAs) are used in applications of remotely sensed HSI data to correct for the effects of atmospheric propagation on measurements acquired by air and space-borne systems. The fast line-of-sight atmospheric analysis of spectral hypercubes (FLAASH) algorithm is an ACA created for HSI applications in the visible through shortwave infrared (Vis-SWIR) spectral regime. FLAASH derives its ´physics-based´ mathematics from MODTRAN4.

Keywords

geophysical signal processing; image processing; image sensors; infrared detectors; radiative transfer; reflectivity; remote sensing; sensor fusion; ultraviolet detectors; FLAASH algorithm; MODTRAN4 radiation transport; airborne systems; atmospheric correction algorithms; atmospheric propagation correction; fast line-of-sight atmospheric analysis of spectral hypercubes algorithm; hyperspectral imagery; physics-based mathematics; reflectance; remotely sensed data; space-borne systems; target detection algorithms; terrain categorization algorithms; visible through shortwave IR spectral regime; Atmospheric measurements; Hyperspectral imaging; Hyperspectral sensors; Layout; Lighting; Object detection; Optical propagation; Reflectivity; Spectral analysis; Sun;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Fusion, 2002. Proceedings of the Fifth International Conference on

Conference_Location

Annapolis, MD, USA

Print_ISBN

0-9721844-1-4

Type

conf

DOI

10.1109/ICIF.2002.1020888

Filename

1020888