DocumentCode
3463011
Title
Contributions to cone beam tomography
Author
Fuhrmann, G. ; Halling, H. ; Moller, Reinhard ; Vell, J. ; Shuang-Ren, Z.
Author_Institution
Zentrallab. fur Elektronik, Forschungszentrum Julich, Germany
fYear
1991
fDate
2-9 Nov. 1991
Firstpage
2012
Abstract
A method for estimating the geometrical parameters of a cone beam tomography system is presented. For that purpose the centroids of the projection of two small spheres are related to the cone beam geometry by nonlinear expressions. The DUD estimation technique was used to estimate the searched parameters by means of the SAS statistical software package. The program is given. In several simulation runs it was proven that the algorithm converges if a fair first estimation is used.<>
Keywords
computerised tomography; parameter estimation; DUD estimation technique; SAS statistical software package; algorithm convergence; cone beam tomography; geometrical parameters estimation method; medical diagnostic imaging; projection centroids; small spheres; Detectors; Electron beams; Geometry; Image reconstruction; Parameter estimation; Reconstruction algorithms; Scanning electron microscopy; Structural beams; Synchrotrons; Tomography;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location
Santa Fe, NM, USA
Print_ISBN
0-7803-0513-2
Type
conf
DOI
10.1109/NSSMIC.1991.259269
Filename
259269
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