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Area-Correlated Spectral Unmixing Based on Bayesian Nonnegative Matrix Factorization

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DOI: 10.4236/ojapps.2013.31B009    3,407 Downloads   5,128 Views   Citations

ABSTRACT

To solve the problem of the spatial correlation for adjacent areas in traditional spectral unmixing methods, we propose an area-correlated spectral unmixing method based on Bayesian nonnegative matrix factorization. In the proposed me-thod, the spatial correlation property between two adjacent areas is expressed by a priori probability density function, and the endmembers extracted from one of the adjacent areas are used to estimate the priori probability density func-tions of the endmembers in the current area, which works as a type of constraint in the iterative spectral unmixing process. Experimental results demonstrate the effectivity and efficiency of the proposed method both for synthetic and real hyperspectral images, and it can provide a useful tool for spatial correlation and comparation analysis between ad-jacent or similar areas.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

X. Chen, J. Yu and W. Sun, "Area-Correlated Spectral Unmixing Based on Bayesian Nonnegative Matrix Factorization," Open Journal of Applied Sciences, Vol. 3 No. 1B, 2013, pp. 41-46. doi: 10.4236/ojapps.2013.31B009.

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