Journal Article

FZJ-2023-01445

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Wigner Distribution Deconvolution Adaptation for Live Ptychography Reconstruction

Bangun, A. (Corresponding author)FZJ* ; Baumeister, P. F.FZJ* ; Clausen, A.FZJ* ; Weber, D.FZJ* ; Dunin-Borkowski, R. E.FZJ*

2023
Cambridge University Press New York, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/34546  doi:10.1093/micmic/ozad021

Abstract: We propose a modification of Wigner distribution deconvolution (WDD) to support live processing ptychography. Live processing allows to reconstruct and display the specimen transmission function gradually while diffraction patterns are acquired. For this purpose, we reformulate WDD and apply a dimensionality reduction technique that reduces memory consumption and increases processing speed. We show numerically that this approach maintains the reconstruction quality of specimen transfer functions as well as reduces computational complexity during acquisition processes. Although we only present the reconstruction for scanning transmission electron microscopy datasets, in general, the live processing algorithm we present in this paper can be applied to real-time ptychographic reconstruction for different fields of application.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)
2. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 5351 - Platform for Correlative, In Situ and Operando Characterization (POF4-535) (POF4-535)
2. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)

Appears in the scientific report 2023

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