Efficient atom selection strategy for iterative sparse approximations
Signal Processing
2018-12-06 v1
Abstract
We propose a low-computational strategy for the efficient implementation of the "atom selection step" in sparse representation algorithms. The proposed procedure is based on simple tests enabling to identify subsets of atoms which cannot be selected. Our procedure applies on both discrete or continuous dictionaries. Experiments performed on DOA and Gaussian deconvolution problems show the computational gain induced by the proposed approach.
Cite
@article{arxiv.1812.01932,
title = {Efficient atom selection strategy for iterative sparse approximations},
author = {Clément Dorffer and Angélique Drémeau and Cedric Herzet},
journal= {arXiv preprint arXiv:1812.01932},
year = {2018}
}
Comments
in Proceedings of iTWIST'18, Paper-ID: 14, Marseille, France, November, 21-23, 2018