BIT Numerical Mathematics

, Volume 53, Issue 2, pp 459–473

Data based regularization for discrete deconvolution problems

Article

DOI: 10.1007/s10543-013-0421-9

Cite this article as:
Huckle, T. & Sedlacek, M. Bit Numer Math (2013) 53: 459. doi:10.1007/s10543-013-0421-9
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Abstract

We focus on the solution of discrete deconvolution problems to recover the original information from blurred signals in the presence of Gaussian white noise more accurately. For a certain class of blur operators and signals we develop a diagonal preconditioner to improve the reconstruction quality, both for direct and iterative regularization methods. In this respect, we incorporate the variation of the signal data during the construction of the preconditioner. Embedding this method in an outer iteration may yield further improvement of the solution. Numerical examples demonstrate the effect of the presented approach.

Keywords

Tikhonov-PhillipsTSVDCGLSIll-posed inverse problems

Mathematics Subject Classification (2010)

65F2265F0865R30

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Fakultät für InformatikTechnische Universität MünchenGarchingGermany