Feldkamp-type image reconstruction from equiangular data
The cone-beam approach for image reconstruction attracts an increasing attention in various applications, especially medical imaging. Previously, the traditional practical cone-beam reconstruction method, the Feldkamp algorithm, was generalized into the case of spiral/helical scanning loci with equi...
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| Vydané v: | Journal of X-ray science and technology Ročník 9; číslo 3; s. 113 |
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| Hlavní autori: | , , , |
| Médium: | Journal Article |
| Jazyk: | English |
| Vydavateľské údaje: |
Netherlands
2001
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| ISSN: | 0895-3996 |
| On-line prístup: | Zistit podrobnosti o prístupe |
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| Shrnutí: | The cone-beam approach for image reconstruction attracts an increasing attention in various applications, especially medical imaging. Previously, the traditional practical cone-beam reconstruction method, the Feldkamp algorithm, was generalized into the case of spiral/helical scanning loci with equispatial cone-beam projection data. In this paper, we formulated the generalized Feldkamp algorithm in the case of equiangular cone-beam projection data, and performed numerical simulation to evaluate the image quality. Because medical multi-slice/cone-beam CT scanners typically use equiangular projection data, our new formula may be useful in this area as a framework for further refinement and a benchmark for comparison. |
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| Bibliografia: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 0895-3996 |
| DOI: | 10.3233/XST-2001-00051 |