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A modular software framework for the design and implementation of ptychography algorithms

Guzzi, Francesco
•
Kourousias, George
•
Billè, Fulvio
altro
Carrato, Sergio
2022
  • journal article

Periodico
PEERJ. COMPUTER SCIENCE.
Abstract
Computational methods are driving high impact microscopy techniques such as ptychography. However, the design and implementation of new algorithms is often a laborious process, as many parts of the code are written in close-to-the-hardware programming constructs to speed up the reconstruction. In this article, we present SciComPty, a new ptychography software framework aiming at simulating ptychography datasets and testing state-of-the-art and new reconstruction algorithms. Despite its simplicity, the software leverages GPU accelerated processing through the PyTorch CUDA interface. This is essential for designing new methods that can readily be employed. As an example, we present an improved position refinement method based on Adam and a new version of the rPIE algorithm, adapted for partial coherence setups. Results are shown on both synthetic and real datasets. The software is released as open-source.
DOI
10.7717/peerj-cs.1036
WOS
WOS:000867505700001
Archivio
http://hdl.handle.net/11368/3026495
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85135855817
https://doi.org/10.7717/peerj-cs.1036
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by-nc/4.0/
FVG url
https://arts.units.it/bitstream/11368/3026495/1/peerj-cs-1036.pdf
Soggetti
  • Ptychography

  • Inverse problem

  • Coherent Diffraction ...

  • Microscopy

  • Phase Retrieval

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