Shoukroun, D;
Doherty, A;
Endrizzi, M;
Bate, D;
Fromme, P;
Olivo, A;
(2022)
Post-Acquisition Mask Misalignment Correction for Edge Illumination X-ray Phase Contrast Imaging.
Review of Scientific Instruments
, 93
(5)
, Article 053706. 10.1063/5.0090517.
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Abstract
Edge illumination x-ray phase contrast imaging uses a set of apertured masks to translate phase effects into variation of detected intensity. While the system is relatively robust against misalignment, mask movement during acquisition can lead to gradient artifacts. A method has been developed to correct the images by quantifying the misalignment post-acquisition and implementing correction maps to remove the gradient artifact. Images of a woven carbon fiber composite plate containing porosity were used as examples to demonstrate the image correction process. The gradient formed during image acquisition was removed without affecting the image quality, and results were subsequently used for quantification of porosity, indicating that the gradient correction did not affect the quantitative content of the images.
| Type: | Article |
|---|---|
| Title: | Post-Acquisition Mask Misalignment Correction for Edge Illumination X-ray Phase Contrast Imaging |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1063/5.0090517 |
| Publisher version: | https://doi.org/10.1063/5.0090517 |
| Language: | English |
| Additional information: | Copyright © 2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10148045 |
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