TY - JOUR
T1 - X-ray tomography using the full complex index of refraction
AU - Nielsen, Mikkel Schou
AU - Lauridsen, Torsten
AU - Thomsen, M.
AU - Jensen, Torben Haugaard
AU - Bech, Martin
AU - Christensen, L.B.
AU - E. V., Olsen
AU - M., Hviid
AU - Feidenhans'l, Robert Krarup
AU - Pfeiffer, F.
PY - 2012/10/7
Y1 - 2012/10/7
N2 - 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
AB - 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
U2 - 10.1088/0031-9155/57/19/5971
DO - 10.1088/0031-9155/57/19/5971
M3 - Journal article
C2 - 22964788
SN - 0031-9155
VL - 57
SP - 5971
EP - 5979
JO - Physics in Medicine and Biology
JF - Physics in Medicine and Biology
IS - 19
ER -