X-ray tomography using the full complex index of refraction
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We report on x-ray tomography using the full complex index of refraction recorded with a grating-based x-ray phase-contrast setup. Combining simultaneous absorption and phase-contrast information, the distribution of the full complex index of refraction is determined and depicted in a bivariate graph. A simple multivariable threshold segmentation can be applied offering higher accuracy than with a single-variable threshold segmentation as well as new possibilities for the partial volume analysis and edge detection. It is particularly beneficial for low-contrast systems. In this paper, this concept is demonstrated by experimental results
Originalsprog | Engelsk |
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Tidsskrift | Physics in Medicine and Biology |
Vol/bind | 57 |
Udgave nummer | 19 |
Sider (fra-til) | 5971-5979 |
Antal sider | 9 |
ISSN | 0031-9155 |
DOI | |
Status | Udgivet - 11 sep. 2012 |
ID: 40737240