CoSaMP: Iterative signal recovery from incomplete and inaccurate samples

By Joel A. Tropp, Deanna Needell. arXiv.org, 2008

4,917 citations recorded by the source corpus.

Abstract Compressive sampling offers a new paradigm for acquiring signals that are compressible with respect to an orthonormal basis. The major algorithmic challenge in compressive sampling is to approximate a compressible signal from noisy samples. This paper describes a new iterative recovery algorithm called CoSaMP that delivers the same guarantees as the best optimization-based approaches. Moreover, this algorithm offers rigorous bounds on computational cost and storage. It is likely to be extremely efficient for practical problems because it requires only matrix–vector multiplies with the sampling matrix. For compressible signals, the running time is just O ( N log 2 N ) , where N is the length of the signal.

Subfields: Biomedical Engineering, Computational Mechanics, Signal Processing

View Paper: https://www.semanticscholar.org/paper/f37fb5f2ec9624f1c8e2e8ace17b71fc3fc32f56

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In Biomedical Engineering

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  2. Yonina C. Eldar
  3. Richard Baraniuk
  4. Justin K. Romberg
  5. E.J. Candes
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  7. Holger Rauhut
  8. Bhaskar D. Rao

In Computational Mechanics

  1. Richard Baraniuk
  2. Yonina C. Eldar
  3. E.J. Candes
  4. Francis R. Bach
  5. Marco F. Duarte
  6. Julien Mairal
  7. Prateek Jain
  8. Martin J. Wainwright

In Signal Processing

  1. Yonina C. Eldar
  2. Richard Baraniuk
  3. Marco F. Duarte
  4. E.J. Candes
  5. David L. Donoho
  6. Francis R. Bach
  7. Prateek Jain
  8. Zhilin Zhang

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