CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Fast and accurate X-ray fluorescence computed tomography imaging with the ordered-subsets expectation maximization algorithm
Yang, Q(杨群); Deng, B(邓彪); Lv, WW; Shen, F; Chen, RC; Wang, YD; Du, GH(杜国浩); Yan, FH; Xiao, TQ(肖体乔); Xu, HJ(徐洪杰)
2012
Source PublicationJOURNAL OF SYNCHROTRON RADIATION
ISSN0909-0495
Volume19
AbstractThe ordered-subsets expectation maximization algorithm (OSEM) is introduced to X-ray fluorescence computed tomography (XFCT) and studied; here, simulations and experimental results are presented. The simulation results indicate that OSEM is more accurate than the filtered back-projection algorithm, and it can efficiently suppress the deterioration of image quality within a large range of angular sampling intervals. Experimental results of both an artificial phantom and cirrhotic liver show that with a satisfying image quality the angular sampling interval could be improved to save on the data-acquisition time when OSEM is employed. In addition, with an optimum number of subsets, the image reconstruction time of OSEM could be reduced to about half of the time required for one subset. Accordingly, it can be concluded that OSEM is a potential method for fast and accurate XFCT imaging.
Language英语
Funding Project应物所项目组
WOS IDWOS:000300571300009
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13164
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Yang, Q,Deng, B,Lv, WW,et al. Fast and accurate X-ray fluorescence computed tomography imaging with the ordered-subsets expectation maximization algorithm[J]. JOURNAL OF SYNCHROTRON RADIATION,2012,19.
APA Yang, Q.,Deng, B.,Lv, WW.,Shen, F.,Chen, RC.,...&Xu, HJ.(2012).Fast and accurate X-ray fluorescence computed tomography imaging with the ordered-subsets expectation maximization algorithm.JOURNAL OF SYNCHROTRON RADIATION,19.
MLA Yang, Q,et al."Fast and accurate X-ray fluorescence computed tomography imaging with the ordered-subsets expectation maximization algorithm".JOURNAL OF SYNCHROTRON RADIATION 19(2012).
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