activity
20132026
most citedImage restoration using sparse approximations of spatially varying blur operators in the wavelet domain

10 citations · 20 across the 8 of their papers we have counts for

collaborators

11 papers

eess.IV2026

Scalable photoacoustic tomography implementations accounting for the spatial impulse response of transducers

Trung-Thai Do, Paul Escande, Caroline Chaux +2

Iterative model-based reconstruction in photoacoustic tomography repeatedly applies the forward operator mapping the initial pressure to the transducer signals, and its adjoint. At…

eess.IV2025

DeepInverse: A Python package for solving imaging inverse problems with deep learning

Julián Tachella, Matthieu Terris, Samuel Hurault +24

DeepInverse is an open-source PyTorch-based library for solving imaging inverse problems. The library covers all crucial steps in image reconstruction from the efficient implementa…

math.ST2023★ 1 cited

On the Concentration of the Minimizers of Empirical Risks

Paul Escande

Obtaining guarantees on the convergence of the minimizers of empirical risks to the ones of the true risk is a fundamental matter in statistical learning. Instead of deriving guara…

cs.SI2022

Random walk informed community detection reveals heterogeneities in the lymph node conduits network

Solène Song, Malek Senoussi, Paul Escande +1

Random walks on networks are widely used to model stochastic processes such as search strategies, transportation problems or disease propagation. A prominent example of such proces…

eess.IV2020

Fast Wavelet Decomposition of Linear Operators through Product-Convolution Expansions

Paul Escande, Pierre Weiss

Wavelet decompositions of integral operators have proven their efficiency in reducing computing times for many problems, ranging from the simulation of waves or fluids to the resol…

eess.SP2018★ 8 cited

A scalable estimator of sets of integral operators

Valentin Debarnot, Paul Escande, Pierre Weiss

We propose a scalable method to find a subspace of low-rank tensors that simultaneously approximates a set of integral operators. The method can be seen as…

cs.IT2016

Estimation of linear operators from scattered impulse responses

Jérémie Bigot, Paul Escande, Pierre Weiss

We provide a new estimator of integral operators with smooth kernels, obtained from a set of scattered and noisy impulse responses. The proposed approach relies on the formalism of…

math.NA2016★ 1 cited

Approximation of integral operators using convolution-product expansions

Paul Escande, Pierre Weiss

We consider a class of linear integral operators with impulse responses varying regularly in time or space. These operators appear in a large number of applications ranging from si…

math.NA2015

Real-time -- deblurring using wavelet expansions of operators

Paul Escande, Pierre Weiss

Image deblurring is a fundamental problem in imaging, usually solved with com-putationally intensive optimization procedures. We show that the minimization can be significantly acc…

math.OC2014

Sparse Wavelet Representations of Spatially Varying Blurring Operators

Paul Escande, Pierre Weiss

Restoring images degraded by spatially varying blur is a problem encountered in many disciplines such as astrophysics, computer vision or biomedical imaging. One of the main challe…

math.OC2013★ 10 cited

Image restoration using sparse approximations of spatially varying blur operators in the wavelet domain

Paul Escande, Pierre Weiss, Francois Malgouyres

Restoration of images degraded by spatially varying blurs is an issue of increasing importance in the context of photography, satellite or microscopy imaging. One of the main diffi…