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Time-Harmonic Optical Flow with Applications in Elastography

In this paper, we propose mathematical models for reconstructing the optical flow in time-harmonic elastography. In this image …

Oleh Melnyk, Michael Quellmalz, Gabriele Steidl, Noah Jaitner, Jakob Jordan, Ingolf Sack
DOI
Background Denoising for Ptychography via Wigner Distribution Deconvolution
Ptychography is a computational imaging technique that aims to reconstruct the object of interest from a set of diffraction patterns. …
Oleh Melnyk, Patricia Römer
DOI
Convergence properties of gradient methods for blind ptychography
We consider blind ptychography, an imaging technique which aims to reconstruct an object of interest from a set of its diffraction …
Oleh Melnyk
Stochastic Amplitude Flow for phase retrieval, its convergence and doppelgängers
In this paper, we focus on Stochastic Amplitude Flow (SAF) for phase retrieval, a stochastic gradient descent for the amplitude-based …
Oleh Melnyk