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Positive matrix factorization method for improving EEG motor imagery classification
Brain Computer Interface (BCI) is a system that is designed to translate a subject’s thought into a signal that is interpreted by a device. A BCI provides a communication channel between the human brain and a computer, ...
Spatially adaptive constrained non negative matrix factorization for hyperspectral unmixing
This dissertation proposes a spatially adaptive constrained Nonnegative Matrix Factorization (sacNMF) for unmixing of hyperspectral imagery. The image is decomposed into spectrally homogeneous regions using quadtree region ...
Unsupervised unmixing of hyperspectral imagery using the constrained positive matrix factorization
In hyperspectral imaging, hundreds of images are taken at narrow and contiguous spectral bands providing us with high spectral resolution spectral signatures that can be used to discriminate between objects. In many ...