Recent & Upcoming Talks

2025

Poster: Background Removal for Ptychography with Wigner Distribution Deconvolution

May 5, 2025 7:00 AM — May 8, 2025 10:30 PM Zurich, Switzerland

Talk: Time-Harmonic Optical Flow with Applications in Elastography

Apr 7, 2025 12:00 PM — Apr 10, 2025 10:00 PM Poznan, Poland

Seminar Talk: Many faces of ptychography

Mar 25, 2025 — Online

Talk: Noise-blind tuning-free square-root LASSO for sparse regression with global linear convergence

Mar 12, 2025 12:00 PM — Mar 13, 2025 11:00 PM Raitenhaslach, Germany

2024

Talk "Time-Harmonic Optical Flow" at Obergurgl

Dec 5, 2024 4:00 PM — 4:20 AM Obergurgl, Austria

Talk "Time-Harmonic Optical Flow"

Sep 25, 2024 7:00 AM — Sep 27, 2024 1:00 PM Siegen, Germany

Workshop "(PRiMA) Phase retrieval in mathematics and applications"

Aug 5, 2024 7:00 AM — Aug 9, 2024 1:00 PM Leiden, The Netherlands

Poster "Finding sparse function decomposition via orthogonal transformation"

Jun 10, 2024 7:15 PM — Jun 14, 2024 2:00 PM Strobl, Austria

Talk "Wigner Distribution deconvolution for ptychography: concept, extensions and recovery guarantees"

This talk focuses on the Wigner Distribution Deconvolution algorithm for ptychography. It approaches the recovery from ptychographic …

Mar 7, 2024 10:30 AM — 11:30 AM DESY, Hamburg, Germany

2023

Talk "Blind Ptychography via Gradient Methods"

Nov 8, 2023 — Nov 10, 2023 Würzburg, Germany

Talk "Gradient Methods for Blind Ptychography" at AIP 2023

Ptychography is an imaging technique, the goal of which is to reconstruct the object of interest from a set of diffraction patterns …

Sep 5, 2023 11:30 AM — Aug 5, 2023 12:00 PM Göttingen, Germany

Plenary Talk "Convergence of iterative methods for phase retrieval and blind ptychography"

Sep 2, 2023 — Sep 5, 2023 Hasenwinkel, Germany

Talk "Understanding gradient methods for blind ptychography"

Jun 14, 2023 7:30 AM — Jun 15, 2023 10:00 PM DESY, Hamburg

Talk "Gradient methods for phase retrieval"

Mar 19, 2023 11:00 PM — Mar 21, 2023 11:00 PM Raitenhaslach, Germany

Poster "Stochastic Amplitude Flow for Phase Retrieval and Ptychography"

We consider Stochastic Amplitude Flow (SAF) for phase retrieval, a stochastic gradient descent for the amplitude-based squared loss. …

Feb 10, 2023 — Bestwig, Germany

2022

Talk "Alternating Amplitude Flow for Blind Ptychography and its convergence"

Based on our preprint “Image Recovery for Blind Polychromatic Ptychography”

Dec 2, 2022 10:12 AM — Dec 5, 2022 11:00 PM Hasenwinkel

Talk "On convergence of Ptychographic Iterative Engine for STFT phase retrieval"

We consider a recovery from ptychographic measurements also known as the Short-Time Fourier Transform (STFT) phase retrieval. That is …

Sep 12, 2022 2:30 PM — 3:00 PM Ingolstadt, Germany

Talk "On gradient-based methods for ptychography" (Osnabrück)

Ptychography is a lenseless imaging technique which became popular among practitioners in last two decades. It considers a series of …

Jul 5, 2022 12:15 PM — 1:15 PM Osnabrück, Germany

Talk "On gradient-based methods for ptychography"

Ptychography is a lenseless imaging technique which became popular among the practitioners in last two decades. It considers a series …

Jun 20, 2022 9:20 AM — 9:45 AM Arcachon, France

Talk "Convergent Regularized Amplitude Flow for Blind Ptychography"

Ptychography is an imaging technique, which collects a set of diffraction patterns obtained by illuminating the small regions of an …

Mar 22, 2022 11:40 AM — 12:05 PM Online