Seabed estimation using triple NMF method

Spectral unmixing of hyperspectral remote sensing reflectance data is a challenging task, being the subject of many recent researches, and aims to retrieve both endmembers spectra and abundances. It turns out to be hardly feasible when the data are attenuated by additional mediums such as water column in the case of seabed estimation. In this case, a possible solution is to first correct the attenuation due to the water column and then proceed to the unmixing process. This paper presents a new approach, jointly estimating the attenuation, the endmembers spectra and the abundances with a triple non-negative matrix factorization (tri-NMF) method. The method has been tested on synthetic and real data and allow one to obtain accurate abundance maps of the seabed.