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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