Search Results for author: Henry N. Chapman

Found 5 papers, 0 papers with code

Live Iterative Ptychography with projection-based algorithms

no code implementations14 Sep 2023 Simon Welker, Tal Peer, Henry N. Chapman, Timo Gerkmann

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.

Retrieval

DriftRec: Adapting diffusion models to blind JPEG restoration

no code implementations12 Nov 2022 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.

JPEG Artifact Removal

Deep Iterative Phase Retrieval for Ptychography

no code implementations17 Feb 2022 Simon Welker, Tal Peer, Henry N. Chapman, Timo Gerkmann

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 inverse Fourier transform must be computed.

Retrieval

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