Smooth sigmoid wavelet shrinkage for non-parametric estimation
Abdourrahmane Mahamane Atto, Dominique Pastor, Grégoire Mercier · IEEE International Conference on Acoustics Speech and Signal Processing · 2008
This paper presents a new sigmoid-based wave shrink function. The shrinkage obtained via this function is particularly suitable to reduce noise without impacting significantly the statistical properties of the signal to be recovered. The proposed WaveShrink function depends on a parameter that makes it possible to control the attenuation degree imposed to the data, and thus, allows for a flexible shrinkage.