Fast Hyperparameter Calibration of Sparsity Enforcing Penalties in Total Generalised Variation Penalised Reconstruction Methods for XCT Using a Planted Virtual Reference Image

Fast Hyperparameter Calibration of Sparsity Enforcing Penalties in Total Generalised Variation Penalised Reconstruction Methods for XCT Using a Planted Virtual Reference Image

The reconstruction problem in X-ray computed tomography (XCT) is notoriously difficult in the case where only a small number of measurements are made. Based on the recently discovered Compressed Sensing paradigm, many methods have been proposed in order to address the reconstruction problem by lever...

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Bibliographic Details
Main Authors: Stéphane Chrétien, Camille Giampiccolo, Wenjuan Sun, Jessica Talbott
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Mathematics
Subjects:
XCT reconstruction
sparsity enforcing penalties
hyperparameter selection
Bayesian optimisation
virtual planted reference image
Online Access:https://www.mdpi.com/2227-7390/9/22/2960

Internet

https://www.mdpi.com/2227-7390/9/22/2960

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