2 papers
math.OC2008
Image Deconvolution Under Poisson Noise Using Sparse Representations and Proximal Thresholding Iteration
François-Xavier Dupé, Jalal Fadili, Jean Luc Starck
We propose an image deconvolution algorithm when the data is contaminated by Poisson noise. The image to restore is assumed to be sparsely represented in a dictionary of waveforms…
astro-ph1997
X-ray structures in galaxy cluster cores
Marguerite Pierre, Jean-Luc Starck
Using a set of ROSAT HRI deep pointings, we investigate the presence of small-scale structures in the central regions of clusters of galaxies. Our sample comprises 23 objects up to…