Structure Detection in Low Intensity X-Ray Images
Astrophysics
2009-10-30 v1
Abstract
In the context of assessing and characterizing structures in X-ray images, we compare different approaches. Most often the intensity level is very low and necessitates a special treatment of Poisson statistics. The method based on wavelet function histogram is shown to be the most reliable one. We also present a multi-resolution filtering method based on the wavelet coefficients detection. Comparative results are presented by means of a simulated cluster of galaxies.
Keywords
Cite
@article{arxiv.astro-ph/9707305,
title = {Structure Detection in Low Intensity X-Ray Images},
author = {Jean-Luc Starck and Marguerite Pierre},
journal= {arXiv preprint arXiv:astro-ph/9707305},
year = {2009}
}
Comments
11 pages, 9 figures, to appear in Astronomy & Astrophysics