Registration of the rotation axis in X-ray tomography.
There is high demand for efficient, robust and automated routines for tomographic data reduction, particularly for synchrotron data. Registration of the rotation axis in data processing is a critical step affecting the quality of the reconstruction and is not easily implemented with automation. Existing methods for calculating the center of rotation have been reviewed and an improved algorithm to register the rotation axis in tomographic data is presented. The performance of the proposed method is evaluated using synchrotron-based microtomography data on geological samples with and without artificial reduction of the signal-to-noise ratio. The proposed method improves the reconstruction quality by correcting both the tilting error and the translational offset of the rotation axis. The limitation of this promising method is also discussed.
Tianjin Yaohua High School, 106 Nanjing Road, Tianjin 300040, People's Republic of China.
Yimeng
Y
Yang
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China.
Feifei
F
Yang
Department of Energy Resources Engineering, Stanford University, 473 Via Ortega, Stanford, CA 94305, USA.
Ferdinand F
FF
Hingerl
Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.
Xianghui
X
Xiao
Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
Yijin
Y
Liu
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China.
Ziyu
Z
Wu
Department of Energy Resources Engineering, Stanford University, 473 Via Ortega, Stanford, CA 94305, USA.
Sally M
SM
Benson
Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
Michael F
MF
Toney
Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
Joy C
JC
Andrews
Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
Piero
P
Pianetta
X-ray tomography; rotation axis