TY - GEN

T1 - Unmixing hyperspectral data

AU - Parra, Lucas

AU - Spence, Clay

AU - Sajda, Paul

AU - Ziehe, Andreas

AU - Müller, Klaus Robert

PY - 2000

Y1 - 2000

N2 - In hyperspectral imagery one pixel typically consists of a mixture of the reflectance spectra of several materials' where the mixture coefficients correspond to the abundances of the constituting materials. We assume linear combinations of reflectance spectra with some additive normal sensor noise and derive a probabilistic MAP framework for analyzing hyperspectral data. As the material reflectance characteristics are not know a priori' we face the problem of unsupervised linear unmixing. The incorporation of different prior information (e.g. positivity and normalization of the abundances) naturally leads to a family of interesting algorithms' for case yielding an algorithm that can be understood as constrained independent component analysis (ICA). Simulations underline the usefulness of our theory.

AB - In hyperspectral imagery one pixel typically consists of a mixture of the reflectance spectra of several materials' where the mixture coefficients correspond to the abundances of the constituting materials. We assume linear combinations of reflectance spectra with some additive normal sensor noise and derive a probabilistic MAP framework for analyzing hyperspectral data. As the material reflectance characteristics are not know a priori' we face the problem of unsupervised linear unmixing. The incorporation of different prior information (e.g. positivity and normalization of the abundances) naturally leads to a family of interesting algorithms' for case yielding an algorithm that can be understood as constrained independent component analysis (ICA). Simulations underline the usefulness of our theory.

UR - http://www.scopus.com/inward/record.url?scp=84898930340&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898930340&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84898930340

SN - 0262194503

SN - 9780262194501

T3 - Advances in Neural Information Processing Systems

SP - 942

EP - 948

BT - Advances in Neural Information Processing Systems 12 - Proceedings of the 1999 Conference, NIPS 1999

PB - Neural information processing systems foundation

T2 - 13th Annual Neural Information Processing Systems Conference, NIPS 1999

Y2 - 29 November 1999 through 4 December 1999

ER -