Title :
A spatial-spectral classification approach of multispectral data for ground perspective materials
Author :
DuPont, Edmond M. ; Chambers, David ; Alexander, Joseph ; Alley, Kevin
Author_Institution :
Aerosp. Electron., Syst. Eng. & Training Div., Southwest Res. Inst., San Antonio, TX, USA
Abstract :
A spatial-spectral classification technique for classification of materials within Hyperspectral images is described in this paper. The method considers the influence of neighboring pixels to apply local spatial context features to correctly label an unknown pixel. The spatial and spectral features are jointly applied to a Maximum Likelihood classifier that uses material class models defined by a Mixture of Gaussians to adaptively account for spectral variability and noise. Experimental results compare the application of spatial and spectral features with only spectral features on the classification of materials common to scenes viewed from the ground perspective.
Keywords :
Gaussian processes; feature extraction; geophysical image processing; image classification; maximum likelihood estimation; remote sensing; spectral analysis; Gaussian mixture; ground perspective materials; hyperspectral images; local spatial context features; material class models; material classification; maximum likelihood classifier; multispectral data; neighboring pixels; spatial features; spatial-spectral classification approach; spatial-spectral classification technique; spectral features; spectral noise; spectral variability; Adaptation models; Hyperspectral imaging; Libraries; Materials; Noise; Reflectivity; classification; hyperspectral; maximum likelihood; mixture of gaussians;
Conference_Titel :
Systems, Man, and Cybernetics (SMC), 2011 IEEE International Conference on
Conference_Location :
Anchorage, AK
Print_ISBN :
978-1-4577-0652-3
DOI :
10.1109/ICSMC.2011.6084140