Noise reduction in X-ray photon correlation spectroscopy with convolutional neural networks encoder–decoder models

@article{Konstantinova2021NoiseRI,
  title={Noise reduction in X-ray photon correlation spectroscopy with convolutional neural networks encoder–decoder models},
  author={Tatiana Konstantinova and Lutz Wiegart and Maksim S Rakitin and Anthony Degennaro and Andi M Barbour},
  journal={Scientific Reports},
  year={2021},
  volume={11}
}
Like other experimental techniques, X-ray photon correlation spectroscopy is subject to various kinds of noise. Random and correlated fluctuations and heterogeneities can be present in a two-time correlation function and obscure the information about the intrinsic dynamics of a sample. Simultaneously addressing the disparate origins of noise in the experimental data is challenging. We propose a computational approach for improving the signal-to-noise ratio in two-time correlation functions that… Expand
1 Citations
Towards a Data Science Enabled MeV Ultrafast Electron Diffraction System
A MeV ultrafast electron diffraction (MUED) instrument is a unique characterization technique to study ultrafast processes in materials by a pump-probe method. This relatively young technology can beExpand

References

SHOWING 1-10 OF 39 REFERENCES
Structural Dynamics of Materials Probed by X-Ray Photon Correlation Spectroscopy
In this chapter we discuss coherent X-ray scattering, photon statistics of speckle patterns, and X-ray photon correlation spectroscopy (XPCS). XPCS is a coherent X-ray scattering technique used toExpand
Optimizing the signal-to-noise ratio for X-ray photon correlation spectroscopy.
An analysis is presented of how to optimize the experimental beamline configuration for achieving the best possible signal-to-noise ratio (SNR) in X-ray photon correlation spectroscopy experimentsExpand
Area detector based photon correlation in the regime of short data batches: Data reduction for dynamic x-ray scattering
A method for reducing time sequences of raw scattering images to intensity time-autocorrelation functions is presented. The procedure is based on the use of a charge coupled device (CCD) areaExpand
Photon statistics and speckle visibility spectroscopy with partially coherent X-rays.
TLDR
Brownian dynamics in a low-density colloidal suspension is measured and an excellent agreement is found between correlation functions measured by X-ray photon correlation spectroscopy and the decay in speckle visibility with integration time obtained from the analysis presented here. Expand
20 µs-resolved high-throughput X-ray photon correlation spectroscopy on a 500k pixel detector enabled by data-management workflow.
TLDR
The performance of the new 52 kHz frame rate Rigaku XSPA-500k detector was characterized on beamline 8-ID-I at the Advanced Photon Source at Argonne for X-ray photon correlation spectroscopy (XPCS) applications, providing human-in-the-loop feedback to experimenters and facilitating the application of XPCS to measuring samples with weak scattering and fast dynamics. Expand
Image Restoration Using Very Deep Convolutional Encoder-Decoder Networks with Symmetric Skip Connections
TLDR
This paper proposes to symmetrically link convolutional and de-convolutional layers with skip-layer connections, with which the training converges much faster and attains a higher-quality local optimum, making training deep networks easier and achieving restoration performance gains consequently. Expand
X-ray photon correlation spectroscopy studies of surfaces and thin films.
The technique of X-ray Photon Correlation Spectroscopy (XPCS) is reviewed as a method for studying the relatively slow dynamics of materials on time scales ranging from microseconds to thousands ofExpand
U-Net: Convolutional Networks for Biomedical Image Segmentation
TLDR
It is shown that such a network can be trained end-to-end from very few images and outperforms the prior best method (a sliding-window convolutional network) on the ISBI challenge for segmentation of neuronal structures in electron microscopic stacks. Expand
X-ray photon correlation spectroscopy during homogenous shear flow.
We report x-ray photon correlation spectroscopy measurements of advective and diffusive dynamics in a dispersion of colloidal particles subjected to homogeneous shear flow in a rotating-disk shearExpand
Chambolle's Projection Algorithm for Total Variation Denoising
TLDR
This paper focuses on the simple description of the theory and on the implementation of Cham- bolle's projection algorithm for minimizing the total variation of a grayscale image and adapts the algorithm to the vectorial total variation for color images. Expand
...
1
2
3
4
...