Speckle-tracking X-ray phase-contrast imaging for samples with obvious edge-enhancement effect

Compared to the grating or crystal-based X-ray phase contrast imaging, the speckle-tracking method has the advantages of a simple setup and two-dimensional imaging. However, the edge-enhancement effect prevents the application of the speckle-tracking imaging to a large variety of samples. In this le...

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Bibliographic Details
Published in:Applied physics letters 2017-10, Vol.111 (17)
Main Authors: Wang, Feixiang, Wang, Yudan, Wei, Gongxiang, Du, Guohao, Xue, Yanling, Hu, Tao, Li, Ke, Deng, Biao, Xie, Honglan, Xiao, Tiqiao
Format: Article
Language:English
Subjects:
Applied physics
Biomedical materials
Image reconstruction
Phase contrast
Tracking
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Summary:Compared to the grating or crystal-based X-ray phase contrast imaging, the speckle-tracking method has the advantages of a simple setup and two-dimensional imaging. However, the edge-enhancement effect prevents the application of the speckle-tracking imaging to a large variety of samples. In this letter, an image reconstruction method is proposed to solve this problem. The experimental results from phantom, a biomedical sample, and a sample with a speckle-resembling structure demonstrated that the proposed method is efficacious in eliminating the effect of edge enhancement. The proposed method may greatly expand the application of the speckle-tracking method to most biomedical and material samples.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4997970