Monochromatic-beam-based dynamic X-ray microtomography based on OSEM-TV algorithm
Xu, L; Chen, RC; Yang, YM; Deng, B; Du, GH; Xie, HL; Xiao, TQ
2017
发表期刊JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY
ISSN0895-3996
卷号25期号:6页码:1007-1017
文章类型期刊论文
摘要Monochromatic-beam-based dynamic X-ray computed microtomography (CT) was developed to observe evolution of microstructure inside samples. However, the low flux density results in low efficiency in data collection. To increase efficiency, reducing the number of projections should be a practical solution. However, it has disadvantages of low image reconstruction quality using the traditional filtered back projection (FBP) algorithm. In this study, an iterative reconstruction method using an ordered subset expectation maximization-total variation (OSEM-TV) algorithm was employed to address and solve this problem. The simulated results demonstrated that normalized mean square error of the image slices reconstructed by the OSEM-TV algorithm was about 1/4 of that by FBP. Experimental results also demonstrated that the density resolution of OSEM-TV was high enough to resolve different materials with the number of projections less than 100. As a result, with the introduction of OSEM-TV, the monochromatic-beam-based dynamic X-ray microtomography is potentially practicable for the quantitative and non-destructive analysis to the evolution of microstructure with acceptable efficiency in data collection and reconstructed image quality.
关键词Image-reconstruction Ct reconstruCtion Projection Data Tomography Noise
DOI10.3233/XST-17279
关键词[WOS]IMAGE-RECONSTRUCTION ; CT RECONSTRUCTION ; PROJECTION DATA ; TOMOGRAPHY ; NOISE
收录类别SCI
语种英语
WOS记录号WOS:000416370600010
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28738
专题中科院上海应用物理研究所2011-2018年
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GB/T 7714
Xu, L,Chen, RC,Yang, YM,et al. Monochromatic-beam-based dynamic X-ray microtomography based on OSEM-TV algorithm[J]. JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY,2017,25(6):1007-1017.
APA Xu, L.,Chen, RC.,Yang, YM.,Deng, B.,Du, GH.,...&Xiao, TQ.(2017).Monochromatic-beam-based dynamic X-ray microtomography based on OSEM-TV algorithm.JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY,25(6),1007-1017.
MLA Xu, L,et al."Monochromatic-beam-based dynamic X-ray microtomography based on OSEM-TV algorithm".JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY 25.6(2017):1007-1017.
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