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Charles Soussen

2 accepted papers

2022

Parameter Estimation in Sparse Inverse Problems Using Bernoulli-Gaussian Prior

ICASSP 2022accepted

Sparse coding is now one of the state-of-art approaches for solving inverse problems. In combination with (Fast) Iterative Shrinkage Thresholding Algorithm (ISTA), among other algorithms, one can efficiently get a nice estimator of the sought sparse signal. However, the major drawback of these metho…

Cited by 0SourceScholar
2019

OMP and Continuous Dictionaries: Is k-step Recovery Possible?

ICASSP 2019accepted

In this work, we present new theoretical results on sparse recovery guarantees for a greedy algorithm, orthogonal matching pursuit (OMP), in the context of continuous parametric dictionaries, i.e., made up of an infinite uncountable number of atoms. We build up a family of dictionaries for which k-s…

Cited by 0SourceScholar