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Phase Retrieval from Short-Time Fourier Measurements and Applications to Ptychography

Authors :
Krahmer, Felix (Prof. Dr.)
Krahmer, Felix (Prof. Dr.);Iwen, Mark (Prof., Ph.D.);Kunis, Stefan (Prof. Dr.)
Melnyk, Oleh
Krahmer, Felix (Prof. Dr.)
Krahmer, Felix (Prof. Dr.);Iwen, Mark (Prof., Ph.D.);Kunis, Stefan (Prof. Dr.)
Melnyk, Oleh
Publication Year :
2023

Abstract

We consider recovery from ptychographic measurements also known as Short-Time Fourier Transform phase retrieval. We study Amplitude Flow, Error Reduction and Ptychographic Iterative Engine algorithms and derive their convergence speed. In addition, Block Phase Retrieval algorithm and its modifications are studied. Furthermore, we consider blind ptychography and devise a version of Amplitude Flow with guaranteed convergence. Finally, some results are extended to polychromatic ptychography.<br />Wir betrachten die Rekonstruktion eines Objektes von ptychographischen Messungen. Wir untersuchen die Algorithmen Amplitude Flow, Error Reduction und Ptychographic Iterative Engine und leiten deren Konvergenzgeschwindigkeit ab. Außerdem untersuchen wir den Block Phase Retrieval Algorithmus. Des Weiteren betrachten wir blinde Ptychographie und entwickeln eine Version von Amplitude Flow mit garantierter Konvergenz. Zuletzt erweitern wir einige der Resultate für polychromatische Ptychographie.

Details

Database :
OAIster
Notes :
application/pdf, application/pdf, English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1390661769
Document Type :
Electronic Resource