Adaptive non-uniform B-spline dictionaries on a compact interval
Functional Analysis
2009-08-06 v1
Abstract
Non-uniform B-spline dictionaries on a compact interval are discussed. For each given partition, dictionaries of B-spline functions for the corresponding spline space are constructed. It is asserted that, by dividing the given partition into subpartitions and joining together the bases for the concomitant subspaces, slightly redundant dictionaries of B-splines functions are obtained. Such dictionaries are proved to span the spline space associated to the given partition. The proposed construction is shown to be potentially useful for the purpose of sparse signal representation. With that goal in mind, spline spaces specially adapted to produce a sparse representation of a given signal are considered.
Keywords
Cite
@article{arxiv.0908.0691,
title = {Adaptive non-uniform B-spline dictionaries on a compact interval},
author = {Laura Rebollo-Neira and Zhiqiang Xu},
journal= {arXiv preprint arXiv:0908.0691},
year = {2009}
}