Corpus ID: 5869753

Sparsity averaging for radio-interferometric imaging

@article{Carrillo2014SparsityAF,
  title={Sparsity averaging for radio-interferometric imaging},
  author={R. Carrillo and J. McEwen and Y. Wiaux},
  journal={ArXiv},
  year={2014},
  volume={abs/1402.2335}
}

R. Carrillo, J. McEwen, Y. Wiaux

Published 2014

Computer Science, Physics

ArXiv

We propose a novel regularization method for compressive imaging in the context of the CS theory with coherent and redundant dictionaries. The approach relies on the conjecture that natural images exhibit strong average sparsity over multiple coherent frames. The associated reconstruction algorithm, based on an analysis prior and a reweighted $\ell_1$ scheme, is dubbed Sparsity Averaging Reweighted Analysis (SARA). We illustrate the performance of SARA in the context of Fourier imaging, for a… CONTINUE READING

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