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Practical cone-beam algorithm
Abstract
A convolution-backprojection formula is deduced for direct reconstruction of a three-dimensional density function from a set of two-dimensional projections. The formula is approximate but has useful properties, including errors that are relatively small in many practical instances and a form that leads to convenient computation. It reduces to the standard fan-beam formula in the plane that is perpendicular to the axis of rotation and contains the point source. The algorithm is applied to a mathematical phantom as an example of its performance. 1.
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“ing the standard Fredkamp-Davis-Kress algorithm [20].”
Metadata
- Authors
- Feldkamp, L. A., Davis, L. C., & Kress, J. W.
- Venue
- Journal of the Optical Society of America A
- Publisher
- Optica Publishing Group
- Published
- 1984-06-01
- Volume
- 1
- Issue
- 6
- Pages
- 612
- ISSN
- 1084-7529 (ISSN-L)
- 1520-8532
- OpenAlex
- W2157812230
- Cited by
- 6,319
- References
- 0
- FWCI
- 2.40
- Type
- journal article
- Language
- en
- Open access
- closed
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