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Shrinkage versus deconvolution

Inverse ProblemsPublished 19 September 2007
Esther Klann, Michael Kühn, Dirk A. Lorenz, Peter Maaß, Herbert Thiele
Citations19
SJR quartileQ1
SJR score0.90
SNIP1.22

Abstract

This paper analyzes the problem of deconvolution, especially for signals with peak-like structures. We present and analyze a so-called 'practical approach', which mainly consists of a wavelet shrinkage. It is shown that this practical approach is indeed a regularization procedure, and furthermore, it leads to a convergence rate that is superior to classical linear regularization theory. Our results are based on modeling signals and operators in Besov spaces, especially exploiting the fact that peaks have higher regularity in Besov spaces than in Sobolev spaces.

Keywords

Computer ScienceMathematics