Bayesian Compressive Sensing Via Belief Propagation

By Dror Baron, Shriram Sarvotham, Richard Baraniuk. IEEE Transactions on Signal Processing, 2008

529 citations recorded by the source corpus.

Compressive sensing (CS) is an emerging field based on the revelation that a small collection of linear projections of a sparse signal contains enough information for stable, sub-Nyquist signal acquisition. When a statistical characterization of the signal is available, Bayesian inference can complement conventional CS methods based on linear programming or greedy algorithms. We perform asymptotically optimal Bayesian inference using belief propagation (BP) decoding, which represents the CS encoding matrix as a graphical model. Fast computation is obtained by reducing the size of the graphical model with sparse encoding matrices. To decode a length-N signal containing K large coefficients, our CS-BP decoding algorithm uses O(K log(N)) measurements and O(N log2(N)) computation. Finally, although we focus on a two-state mixture Gaussian model, CS-BP is easily adapted to other signal models.

Subfields: Computational Mechanics, Computer Networks and Communications, Signal Processing

View Paper: https://www.semanticscholar.org/paper/01fdfadad51359b5b64b2a0c17379a4919f8c9e4

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In Computational Mechanics

  1. Florent Krzakala
  2. Lenka Zdeborov'a
  3. Sundeep Rangan
  4. Andrea Montanari
  5. David L. Donoho
  6. Arian Maleki
  7. Richard Baraniuk
  8. Prateek Jain

In Computer Networks and Communications

  1. Andrea Montanari
  2. Lenka Zdeborov'a
  3. Florent Krzakala
  4. David L. Donoho
  5. Arian Maleki
  6. Anna C. Gilbert
  7. M. M'ezard
  8. Yifan Sun

In Signal Processing

  1. Andrea Montanari
  2. David L. Donoho
  3. Arian Maleki
  4. Lenka Zdeborov'a
  5. Florent Krzakala
  6. Prateek Jain
  7. M. M'ezard
  8. Philip Schniter

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