| Autor: |
E.X. Wu, Zang-Hee Cho, S.K. Hilal |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference. |
| DOI: |
10.1109/nssmic.1991.259261 |
| Popis: |
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. > |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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