Dictionary learning with spatio-spectral sparsity constraints (2009)
Moudden, Yassir, Bobin, Jérome, Starck, Jean-Luc, Fadili, Jalal
Devising efficient sparse decomposition algorithms in large redundant dictionaries has attracted much attention recently. However, choosing the right dictionary for a given data set remains an issue....
Dictionary learning with spatio-spectral sparsity constraints (2009)
Moudden, Yassir, Bobin, Jérome, Starck, Jean-Luc, Fadili, Jalal
Devising efficient sparse decomposition algorithms in large redundant dictionaries has attracted much attention recently. However, choosing the right dictionary for a given data set remains an issue....
Handbook for the GREAT08 Challenge: An image analysis competition for cosmological lensing (2008)
Bridle, Sarah, Shawe-Taylor, John, Amara, Adam, Applegate, Douglas, Balan, Sreekumar T., Berge, Joel, ...
The GRavitational lEnsing Accuracy Testing 2008 (GREAT08) Challenge focuses on a problem that is of crucial importance for future observations in cosmology. The shapes of distant galaxies can be used...
Moudden, Sparsity and morphological diversity in blind source separation (2008)
Jérôme Bobin, Jean-luc Starck, Jalal Fadili, Yassir Moudden
Abstract—Over the last few years, the development of multichannel sensors motivated interest in methods for the coherent processing of multivariate data. Some specific issues have already been...
Morphological component analysis: An adaptive thresholding strategy (2007)
Jérôme Bobin, Jean-luc Starck, Jalal M. Fadili, Yassir Moudden, David L. Donoho
Abstract—In a recent paper, a method called morphological component analysis (MCA) has been proposed to separate the texture from the natural part in images. MCA relies on an iterative thresholding...
Wavelets, ridgelets and curvelets on the sphere (2005)
Starck, Jean-Luc, Moudden, Yassir, Abrial, Pierrick, Nguyen, Mai
We present in this paper new multiscale transforms on the sphere, namely the isotropic undecimated wavelet transform, the pyramidal wavelet transform, the ridgelet transform and the curvelet...
CARDOSO, Jean-Francois, ABRIAL, Pierrick, MOUDDEN, Yassir, STARCK, Jean-Luc, DELABROUILLE, Jacques
Cet article décrit des statistiques de corrélation localisées en fréquence et position sur la sphère et leur application pour la séparation de composantes dans les observations multi-spectrales...