Papers › Wigner Distribution Deconvolution Adaptation for Live Ptychography Reconstruction

Wigner Distribution Deconvolution Adaptation for Live Ptychography Reconstruction

2 Dec 2022arXiv:2212.01309links table onlyarchive 2025-07-28

Arya Bangun, Paul F. Baumeister, Alexander Clausen, Dieter Weber, Rafal E. Dunin-Borkowski

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We propose a modification of Wigner Distribution Deconvolution (WDD) to support live processing ptychography. Live processing allows to reconstruct and display the specimen transfer 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 (STEM) 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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