Search Results for author: David Barmherzig

Found 3 papers, 0 papers with code

Practical Phase Retrieval Using Double Deep Image Priors

no code implementations2 Nov 2022 Zhong Zhuang, David Yang, Felix Hofmann, David Barmherzig, Ju Sun

Phase retrieval (PR) concerns the recovery of complex phases from complex magnitudes.

Retrieval

Practical Phase Retrieval: Low-Photon Holography with Untrained Priors

no code implementations1 Jan 2021 Hannah Lawrence, David Barmherzig, Henry Li, Michael Eickenberg, Marylou Gabrié

To the best of our knowledge, this is the first work to consider a dataset-free machine learning approach for holographic phase retrieval.

Retrieval

A Local Analysis of Block Coordinate Descent for Gaussian Phase Retrieval

no code implementations6 Dec 2017 David Barmherzig, Ju Sun

While convergence of the Alternating Direction Method of Multipliers (ADMM) on convex problems is well studied, convergence on nonconvex problems is only partially understood.

Retrieval

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