• DocumentCode
    3496547
  • Title

    A fast and accurate first-order algorithm for compressed sensing

  • Author

    Bobin, J. ; Candés, E.J.

  • Author_Institution
    Appl. & Comput. Math., California Inst. of Technol., Pasadena, CA, USA
  • fYear
    2009
  • fDate
    7-10 Nov. 2009
  • Firstpage
    1457
  • Lastpage
    1460
  • Abstract
    This paper introduces a new, fast and accurate algorithm for solving problems in the area of compressed sensing, and more generally, in the area of signal and image reconstruction from indirect measurements. This algorithm is inspired by recent progress in the development of novel first-order methods in convex optimization, most notably Nesterov´s smoothing technique. In particular, there is a crucial property that makes these methods extremely efficient for solving compressed sensing problems. Numerical experiments show the promising performance of our method to solve problems which involve the recovery of signals spanning a large dynamic range.
  • Keywords
    image reconstruction; image sampling; optimisation; Nesterovs smoothing technique; accurate algorithm; compressed sensing; convex optimization; dynamic range signals spanning; fast algorithm; first order algorithm; image reconstruction; Analog-digital conversion; Area measurement; Compressed sensing; Dynamic range; Image reconstruction; Mathematics; Optimization methods; Sampling methods; Signal design; Smoothing methods; ℓ1 and total-variation minimization; Compressed sensing; smoothing technique in optimization; sparsity;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Image Processing (ICIP), 2009 16th IEEE International Conference on
  • Conference_Location
    Cairo
  • ISSN
    1522-4880
  • Print_ISBN
    978-1-4244-5653-6
  • Electronic_ISBN
    1522-4880
  • Type

    conf

  • DOI
    10.1109/ICIP.2009.5414554
  • Filename
    5414554