268 citations · 591 across the 36 of their papers we have counts for
6 papers · 1 filter
Sparse Support Recovery with Non-smooth Loss Functions
Kévin Degraux, Gabriel Peyré, Jalal M. Fadili +1
In this paper, we study the support recovery guarantees of underdetermined sparse regression using the -norm as a regularizer and a non-smooth loss function for data fideli…
Blind Deconvolution of PET Images using Anatomical Priors
Stéphanie Guérit, Adriana González, Anne Bol +2
Images from positron emission tomography (PET) provide metabolic information about the human body. They present, however, a spatial resolution that is limited by physical and instr…
Improving the Correlation Lower Bound for Simultaneous Orthogonal Matching Pursuit
Jean-François Determe, Jérôme Louveaux, Laurent Jacques +1
The simultaneous orthogonal matching pursuit (SOMP) algorithm aims to find the joint support of a set of sparse signals acquired under a multiple measurement vector model. Critical…
Time for dithering: fast and quantized random embeddings via the restricted isometry property
Laurent Jacques, Valerio Cambareri
Recently, many works have focused on the characterization of non-linear dimensionality reduction methods obtained by quantizing linear embeddings, e.g., to reach fast processing ti…
Multi-resolution Compressive Sensing Reconstruction
Adriana Gonzalez, Hong Jiang, Gang Huang +1
We consider the problem of reconstructing an image from compressive measurements using a multi-resolution grid. In this context, the reconstructed image is divided into multiple re…
Cell segmentation with random ferns and graph-cuts
Arnaud Browet, Christophe De Vleeschouwer, Laurent Jacques +3
The progress in imaging techniques have allowed the study of various aspect of cellular mechanisms. To isolate individual cells in live imaging data, we introduce an elegant image…