Landsat spectral demixing a la superresolution of blind matrix inversion by constraint MaxEnt neural nets
Harold H Szu, Charles Chia-chuen Hsu · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1997
A single pixel of a Landsat image has seven channels receiving 0.1 to 10 microns of radiation from the ground within a 20 by 20 meter footprint. In principle, the pattern of seven values can be utilized to identify ground sources within the pixel footprint by using methodologies called spectral blind demixing of unknown sources when the reflectance matrix Wij for the ith object and the jth band is either partially or difficult to measure in the outer space.