DocumentCode :
3462842
Title :
Weighted backprojection approach to cone beam 3D projection reconstruction for the truncated spherical detection geometry
Author :
Wu, E.X. ; Cho, H. ; Hila, S.K.
Author_Institution :
Dept. of Radiol. Sci., California Univ., Irvine, CA, USA
fYear :
1991
fDate :
2-9 Nov. 1991
Firstpage :
1969
Abstract :
A novel analytical three-dimensional cone beam reconstruction algorithm is presented for truncated spherical detection geometry. The algorithm is generalized for other geometries, such as a truncated cylinder. This approach involves weighted backprojection of cone beam projection data to form a raw 3-D backprojection image, and subsequent 3-D space-invariant filtering. The algorithm is analytically exact and computationally efficient. The performance of the algorithm is evaluated using computer simulation studies, and results are found to be accurate.<>
Keywords :
computerised tomography; image reconstruction; 3D space-invariant filtering; analytically exact computationally efficient algorithm; computer simulation; cone beam 3D projection reconstruction; truncated cylinder; truncated spherical detection geometry; weighted backprojection approach; Algorithm design and analysis; Computer simulation; Filtering algorithms; Geometry; Image reconstruction; Nonhomogeneous media; Object detection; Radioactive decay; Radiology; Reconstruction algorithms;
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.1991.259261
Filename :
259261
Link To Document :
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