# Non-negative Matrix Factorization: Robust Extraction of Extended Structures

@article{Ren2017NonnegativeMF, title={Non-negative Matrix Factorization: Robust Extraction of Extended Structures}, author={Bin 彬 Ren 任 and Laurent Pueyo and Guangtun Ben Zhu and John H. Debes and Gaspard Duch{\^e}ne}, journal={The Astrophysical Journal}, year={2017}, volume={852} }

We apply the vectorized non-negative matrix factorization (NMF) method to the post-processing of the direct imaging data of exoplanetary systems such as circumstellar disks. NMF is an iterative approach, which first creates a nonorthogonal and non-negative basis of components using the given reference images and then models a target with the components. The constructed model is then rescaled with a factor to compensate for the contribution from the disks. We compare NMF with existing methods…

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