Title :
Analysis of ray-sampling for non-circular trajectories in fan beam geometry
Author :
Zamyatin, Alexander A.
Author_Institution :
Toshiba Medical Research Institute USA, Vernon Hills, IL 60061, USA
Abstract :
We propose a technique to measure sampling efficiency of various trajectories with or without detector quarter offset, and analyze aliasing artifacts caused by insufficient sampling.
Keywords :
Brushes; Computed tomography; Detectors; Ellipsoids; Geometry; Image reconstruction; Imaging phantoms; Interpolation; Rotation measurement; Sampling methods;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location :
Dresden, Germany
Print_ISBN :
978-1-4244-2714-7
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2008.4774423
