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Unmixing Hyperspectral Intimate Mixtures

Nascimento, J. ; Bioucas-Dias, J.

Unmixing Hyperspectral Intimate Mixtures, Proc SPIE - Conf. on Image and Signal Processing for Remote Sensing, Toulouse, France, Vol. 7830, pp. 78300C - 78300C-8, September, 2010.

Digital Object Identifier: 10.1117/12.865118

Abstract
This paper addresses the problem of unmixing hyperspectral images, when intimate mixtures are present. In these scenarios the light suffers multiple interactions among distinct endmembers, which is not accounted for linear mixing model.
This paper proposes a method to unmix hyperspectral intimate mixtures in two steps: first, based on the
Hapke intimate mixture model, the reflectance is converted to the single scattering albedo average. Second, the mass fractions of the endmembers are estimated by a recently proposed method termed simplex identification via split augmented Lagrangian (SISAL). The proposed method is evaluated on a well known intimate mixture data set.