Shearlet shrinkage de-noising based total variation regularization[J]. Journal of Image and Graphics, 2011, 16(2): 168-173. DOI: 10.11834/jig.20110224.
Shearlet is a new-style multi-scale geometry analysis tool. It creates Shearlet functions which have different characteristics through zooming
shearing
translating and other affine transforming methods
and enables its capable of optimally sparse representation. Firstly
a digital Shearlet transform implementation method is proposed in this paper. And then
a new de-noising method that combines Shearlet transform and variation is presented
which mainly been established using a total variation regularization model to constraint condition on Shearlet transform domain. The proposed model aims at reducing Pseudo-Gibbs artifacts after simple threshold methods. Numerical examples demonstrate that the method can remove noises and keep edges effectively