257 citations · 441 across the 24 of their papers we have counts for
4 papers · 1 filter
Position-Blind Ptychography: Viability of image reconstruction via data-driven variational inference
Simon Welker, Lorenz Kuger, Tim Roith +4
In this work, we present and investigate the novel blind inverse problem of position-blind ptychography, i.e., ptychographic phase retrieval without any knowledge of scan positions…
Live Iterative Ptychography with projection-based algorithms
Simon Welker, Tal Peer, Henry N. Chapman +1
In this work, we demonstrate that the ptychographic phase problem can be solved in a live fashion during scanning, while data is still being collected. We propose a generally appli…
DriftRec: Adapting diffusion models to blind JPEG restoration
Simon Welker, Henry N. Chapman, Timo Gerkmann
In this work, we utilize the high-fidelity generation abilities of diffusion models to solve blind JPEG restoration at high compression levels. We propose an elegant modification o…
Deep Iterative Phase Retrieval for Ptychography
Simon Welker, Tal Peer, Henry N. Chapman +1
One of the most prominent challenges in the field of diffractive imaging is the phase retrieval (PR) problem: In order to reconstruct an object from its diffraction pattern, the in…