Deep neural networks for classifying complex features in diffraction images

Abstract: Intense short-wavelength pulses from free-electron lasers and high-harmonic-generation sources enable diffractive imaging of individual nanosized objects with a single x-ray laser shot. The enormous data sets with up to several million diffraction patterns present a severe problem for data analysis because of the high dimensionality of imaging data. Feature recognition and selection is a crucial step to reduce the dimensionality. Usually, custom-made algorithms are developed at a considerable effort to approximate the particular features connected to an individual specimen, but because they face different experimental conditions, these approaches do not generalize well. On the other hand, deep neural networks are the principal instrument for today's revolution in automated image recognition, a development that has not been adapted to its full potential for data analysis in science. We recently published [Langbehn et al., Phys. Rev. Lett. 121, 255301 (2018)] the application of a deep neural network as a feature extractor for wide-angle diffraction images of helium nanodroplets. Here we present the setup, our modifications, and the training process of the deep neural network for diffraction image classification and its systematic bench marking. We find that deep neural networks significantly outperform previous attempts for sorting and classifying complex diffraction patterns and are a significant improvement for the much-needed assistance during postprocessing of large amounts of experimental coherent diffraction imaging data

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
Physical Review. E. - 99, 6 (2019) , 063309, ISSN: 2470-0045

Ereignis
Veröffentlichung
(wo)
Freiburg
(wer)
Universität
(wann)
2020
Urheber
Zimmermann, Julian
Langbehn, Bruno
Cucini, Riccardo
Di Fraia, Michele
Finetti, Paola
LaForge, Aaron
Nishiyama, Toshiyuki
Ovcharenko, Yevheniy
Piseri, Paolo
Plekan, Oksana
Prince, Kevin C.
Stienkemeier, Frank
Ueda, Kiyoshi
Callegari, Carlo
Möller, Thomas
Rupp, Daniela
Beteiligte Personen und Organisationen
Molekül- und Nanophysik
FRIAS Natur- und Lebenswissenschaften, Medizin und Ingenieurwissenschaften

DOI
10.1103/physreve.99.063309
URN
urn:nbn:de:bsz:25-freidok-1531796
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
25.03.2025, 13:51 MEZ

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Beteiligte

  • Zimmermann, Julian
  • Langbehn, Bruno
  • Cucini, Riccardo
  • Di Fraia, Michele
  • Finetti, Paola
  • LaForge, Aaron
  • Nishiyama, Toshiyuki
  • Ovcharenko, Yevheniy
  • Piseri, Paolo
  • Plekan, Oksana
  • Prince, Kevin C.
  • Stienkemeier, Frank
  • Ueda, Kiyoshi
  • Callegari, Carlo
  • Möller, Thomas
  • Rupp, Daniela
  • Molekül- und Nanophysik
  • FRIAS Natur- und Lebenswissenschaften, Medizin und Ingenieurwissenschaften
  • Universität

Entstanden

  • 2020

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