Variable Weighted Ordered Subset Image Reconstruction Algorithm
We propose two variable weighted iterative reconstruction algorithms (VW-ART and VW-OS-SART) to improve the algebraic reconstruction technique (ART) and simultaneous algebraic reconstruction technique (SART) and establish their convergence. In the two algorithms, the weighting varies with the geomet...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2006-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/IJBI/2006/10398 |
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| _version_ | 1832553279433736192 |
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| author | Jinxiao Pan Tie Zhou Yan Han Ming Jiang |
| author_facet | Jinxiao Pan Tie Zhou Yan Han Ming Jiang |
| author_sort | Jinxiao Pan |
| collection | DOAJ |
| description | We propose two variable weighted iterative reconstruction algorithms (VW-ART and VW-OS-SART) to improve the algebraic reconstruction technique (ART) and simultaneous algebraic reconstruction technique (SART) and establish their convergence. In the two algorithms, the weighting varies with the geometrical direction of the ray. Experimental results with both numerical simulation and real CT data demonstrate that the VW-ART has a significant improvement in the quality of reconstructed images over ART and OS-SART. Moreover, both VW-ART and VW-OS-SART are more promising in convergence speed than the ART and SART, respectively. |
| format | Article |
| id | doaj-art-a14c7263893340b098cd2b5ca6b27e17 |
| institution | Kabale University |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-a14c7263893340b098cd2b5ca6b27e172025-02-03T05:54:29ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962006-01-01200610.1155/IJBI/2006/1039810398Variable Weighted Ordered Subset Image Reconstruction AlgorithmJinxiao Pan0Tie Zhou1Yan Han2Ming Jiang3LMAM, School of Mathematical Sciences, Peking University, Beijing 100871, ChinaLMAM, School of Mathematical Sciences, Peking University, Beijing 100871, ChinaDepartment of Mathematics, North University of China, Taiyuan, Shanxi 030051, ChinaLMAM, School of Mathematical Sciences, Peking University, Beijing 100871, ChinaWe propose two variable weighted iterative reconstruction algorithms (VW-ART and VW-OS-SART) to improve the algebraic reconstruction technique (ART) and simultaneous algebraic reconstruction technique (SART) and establish their convergence. In the two algorithms, the weighting varies with the geometrical direction of the ray. Experimental results with both numerical simulation and real CT data demonstrate that the VW-ART has a significant improvement in the quality of reconstructed images over ART and OS-SART. Moreover, both VW-ART and VW-OS-SART are more promising in convergence speed than the ART and SART, respectively.http://dx.doi.org/10.1155/IJBI/2006/10398 |
| spellingShingle | Jinxiao Pan Tie Zhou Yan Han Ming Jiang Variable Weighted Ordered Subset Image Reconstruction Algorithm International Journal of Biomedical Imaging |
| title | Variable Weighted Ordered Subset Image Reconstruction Algorithm |
| title_full | Variable Weighted Ordered Subset Image Reconstruction Algorithm |
| title_fullStr | Variable Weighted Ordered Subset Image Reconstruction Algorithm |
| title_full_unstemmed | Variable Weighted Ordered Subset Image Reconstruction Algorithm |
| title_short | Variable Weighted Ordered Subset Image Reconstruction Algorithm |
| title_sort | variable weighted ordered subset image reconstruction algorithm |
| url | http://dx.doi.org/10.1155/IJBI/2006/10398 |
| work_keys_str_mv | AT jinxiaopan variableweightedorderedsubsetimagereconstructionalgorithm AT tiezhou variableweightedorderedsubsetimagereconstructionalgorithm AT yanhan variableweightedorderedsubsetimagereconstructionalgorithm AT mingjiang variableweightedorderedsubsetimagereconstructionalgorithm |