ABSTRACT

Hyperspectral imaging is concerned with the measurement, analysis, and interpretation of spectra acquired from a given scene (or speciœc object) at a short, medium, or long distance by an airborne or satellite sensor [1]. The concept of hyperspectral imaging originated at NASA’s Jet Propulsion Laboratory in California with the development of the Airborne visible infrared imaging spectrometer (AVIRIS), able to cover the wavelength region from 400 to 2500 nm using more than 200 spectral channels, at nominal spectral resolution of 10 nm [2]. As a result, each pixel vector collected by a hyperspectral instrument can be seen as a spectral signature or –ngerprint of the underlying materials within the pixel.