Title :
Interpretation and improvement of an iterative wavelet-based denoising method
Author :
Ranta, R. ; Heinrich, C. ; Louis-Dorr, Valérie ; Wolf, D.
Author_Institution :
Centre de Recherche en Automatique de Nancy, CRAN UMR CNRS-INPL, Vandoeuvre, France
Abstract :
The goal of this paper is to shed new light on a wavelet-based denoising method developed by Hadjileontiadis et al. (1997, 2000) which is derived from an iterative denoising algorithm by Coifman and Wickerhauser (1995, 1998). The underlying algorithm is revisited and interpreted as a fixed-point algorithm. This allows us to derive a new version of the algorithm largely increasing computational efficiency.
Keywords :
iterative methods; signal denoising; wavelet transforms; computational efficiency; fixed-point algorithm; iterative method; wavelet-based denoising; Computational efficiency; Discrete wavelet transforms; Iterative algorithms; Iterative methods; Lungs; Noise reduction; Signal processing algorithms; Wavelet analysis; Yield estimation;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2003.814801
