Title :
Sampling Requirements for Circular Cone Beam Tomography
Author :
Brokish, Jeffrey ; Bresler, Yoram
Author_Institution :
InstaRecon, Inc., Urbana, IL
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
The sampling requirements of tomographic projection data are determined by the set of frequencies occupied by the Fourier transform of the projection data. This region of essential support has been analyzed for various 2-D geometries. The general case of 3-D cone beam projections, using a 2-D detector array, is mainly unexplored. In this paper, we consider the 3-D circular cone-beam (CCB) scan. An analysis of the essential support of CCB projection data provides the sampling requirements for detector spacing, row spacing, and projection count (views).
Keywords :
computerised tomography; 3D circular cone-beam scan; 3D cone beam projections; Fourier transform; circular cone beam tomography; Bandwidth; Detectors; Fourier transforms; Frequency; Geometry; Nuclear and plasma sciences; Sampling methods; Sensor arrays; Tomography; USA Councils;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.356478
