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16 August 2024 Implementation of dual-phase grating system phase contrast information extraction based on generative adversarial networks
Jiacheng Zeng, Jianheng Huang, Minghui Zhu, Jiaqi Li, Yaohu Lei, Xin Liu
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Proceedings Volume 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024); 132312Z (2024) https://doi.org/10.1117/12.3040168
Event: Fourth International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 2024, Chongqing, China
Abstract
In the dual-phase grating system of X-ray phase-contrast imaging, the reduction in structural requirements for the absorption grating relaxes the constraints on its aspect ratio and period, thereby broadening the applicability of X-ray phase-contrast imaging techniques in a wider market. Traditionally, the extraction of phase-contrast information primarily relies on phase-stepping methods or Fourier transform algorithms, which often introduce artifacts and blurring into the images. To achieve higher quality image restoration, this study introduces generative adversarial networks (GANs) for high-quality image reconstruction. Our approach uses ideal images as labels and images containing object stripe information as inputs, utilizing GANs for feature learning to facilitate the transformation from object stripe images to high-quality phase-contrast images. The network also employs transfer learning to process previously unseen object stripe images and generate corresponding phase-contrast images. This technique not only significantly enhances image resolution but also substantially reduces artifacts and blurring in the image processing, paving the way for high-precision demands in medical diagnostics and industrial inspection.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Jiacheng Zeng, Jianheng Huang, Minghui Zhu, Jiaqi Li, Yaohu Lei, and Xin Liu "Implementation of dual-phase grating system phase contrast information extraction based on generative adversarial networks", Proc. SPIE 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 132312Z (16 August 2024); https://doi.org/10.1117/12.3040168
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KEYWORDS
X-rays
X-ray imaging
Imaging systems
Gallium nitride
Image processing
Optical gratings
Image quality
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