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Weighted backprojection approach to cone beam 3D projection reconstruction for the truncated spherical detection geometry

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3 Author(s)
Wu, E.X. ; Dept. of Radiol. Sci., California Univ., Irvine, CA, USA ; Cho, Z.H. ; Hilal, S.K.

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.<>

Published in:

Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE

Date of Conference:

2-9 Nov. 1991

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