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Irène Waldspurger
Researcher at Paris Dauphine University
Publications - 17
Citations - 1442
Irène Waldspurger is an academic researcher from Paris Dauphine University. The author has contributed to research in topics: Phase retrieval & Wavelet transform. The author has an hindex of 12, co-authored 17 publications receiving 1258 citations. Previous affiliations of Irène Waldspurger include Centre national de la recherche scientifique & École Normale Supérieure.
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Phase recovery, MaxCut and complex semidefinite programming
TL;DR: In this article, the phase retrieval problem is cast as a nonconvex quadratic program over a complex phase vector and formulated a tractable relaxation (called PhaseCut) similar to the classical MaxCut semidefinite program.
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Phase Recovery, MaxCut and Complex Semidefinite Programming
TL;DR: This work casts the phase retrieval problem as a non-convex quadratic program over a complex phase vector and formulates a tractable relaxation similar to the classical MaxCut semidefinite program.
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Phase retrieval for imaging problems
TL;DR: It is shown that exploiting structural assumptions on the signal and the observations, such as sparsity, smoothness or positivity, can significantly speed-up convergence and improve recovery performance.
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Phase Retrieval for the Cauchy Wavelet Transform
TL;DR: In this paper, the authors consider the phase retrieval problem in which one tries to reconstruct a function from the modulus of its wavelet transform, and study the uniqueness and stability of the reconstruction.
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Phase Retrieval With Random Gaussian Sensing Vectors by Alternating Projections
TL;DR: In this paper, the authors show that with a suitable initialization procedure, the classical alternating projections (Gerchberg-Saxton) succeeds with high probability when $m\geq Cn$, for some $C>0$.