Automated material map generation using hyperspectral data: a case study using AVIRIS imagery

Paul G. Lucey; Michael E. Winter; Edwin M. Winter; Donovan Steutel

doi:10.1117/12.478744

2 August 2002 Automated material map generation using hyperspectral data: a case study using AVIRIS imagery

Paul G. Lucey, Michael E. Winter, Edwin M. Winter, Donovan Steutel

Proceedings Volume 4725, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery VIII; (2002) https://doi.org/10.1117/12.478744
Event: AeroSense 2002, 2002, Orlando, FL, United States

Abstract

The University of Hawaii's Efficient Materials Mapping program aims to automatically and rapidly produce material maps from hyperspectral scenes. The program combines an end- member determination algorithm and a material identification algorithm to produce context maps in real time without user intervention. The material identification algorithm is a combination of a spectral databse and analytic code; each spectrum in the library augmented with computer readable diagnostic instructions. At present, the material library consists of over three hundred different spectra, generally geological materials from the USGS digital spectral library, however selected spectra from other libraries have been incorporated. Our method has been applied to an AVIRIS sceme taken over Kaneohe Bay, Hawaii. This scene contains large expanses of ocean, developed and undeveloped land, thus providing a good test bed for the program. The results of applying this methodolgy were verified by ground truth where possible by team equipped with hand held spectrometer. Algorithm derived archetypical en-member locations were well matched well by the material identification database, however the end-member determination itself operated sub- optimally on this scene. These results will guid progress with respect to the continued development of this program.

Citation Download Citation

Paul G. Lucey, Michael E. Winter, Edwin M. Winter, and Donovan Steutel "Automated material map generation using hyperspectral data: a case study using AVIRIS imagery", Proc. SPIE 4725, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery VIII, (2 August 2002); https://doi.org/10.1117/12.478744

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