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Properties of a parameterization of radon projection by the reconstruction on circular disk
- Source :
- Proc. SPIE 7622:76222F (2010)
- Publication Year :
- 2010
- Publisher :
- SPIE, 2010.
-
Abstract
- An angular parameterization of parallel Radon projections referred to in this paper as ψ-parameterization is discussed in relevance to the efficiency of reconstruction from fan data. The fact that the ψ-parameterization coincides with the equiangular fan beam parameterization allows us to develop a simple and efficient approach useful for the reconstruction from fan data. Within this approach parallel projections are approximated by groups of semi-parallel rays. The reconstruction is carried out directly, i.e. without any modification of original data, at the speed which is comparable or even higher than that of the parallel Filtered Back Projection (FBP) algorithm.
- Subjects :
- CT
Tomography
Reconstruction
fan beam
Tomographic reconstruction
Radon transform
Computer science
Parallel projection
business.industry
Equiangular polygon
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
chemistry.chemical_element
Radon
Optics
chemistry
Projection (mathematics)
business
Parametrization
Algorithm
Beam (structure)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Proc. SPIE 7622:76222F (2010)
- Accession number :
- edsair.doi.dedup.....0949d68553e118e5ad5e6ba719f8f38a