CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample
Dong, B; Xu, F; Hu, XF; Qu, HY; Kang, D; Xiao, TQ; xufeng3@ustc.edu.cn
2014
Source PublicationSCIENTIFIC WORLD JOURNAL
ISSN1537-744X
AbstractTo investigate the local micro-/nanoscale region in a large scale sample, an image reconstruction method for nanometer computed tomography (nano-CT) was proposed in this paper. In the algorithm, wavelets were used to localize the filtered-backprojection (FBP) algorithm because of its space-frequency localization property. After the implementation of the algorithm, two simulation local reconstruction experiments were performed to confirm its effectiveness. Three evaluation criteria were used in the experiments to judge the quality of the reconstructed images. The experimental results showed that the algorithm proposed in this paper performed best because (1) the quality of its results had improved 20%-30% compared to the results of FBP and 10%-30% compared to the results of another wavelet algorithm; (2) the new algorithm was stable under different circumstances. Besides, an actual reconstruction experiment was performed using real projection data that had been collected in a CT experiment. Two-dimensional (2D) and three-dimensional (3D) images of the sample were reconstructed. The microstructure of the sample could be clearly observed in the reconstructed images. Since much attention has been directed towards the nano-CT technique to investigate the microstructure of materials, this new wavelet-based local tomography algorithm could be considered as a meaningful effort.
KeywordTomography Transform
Indexed BySCI
Language英语
WOS IDWOS:000332560400001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14185
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorxufeng3@ustc.edu.cn
Recommended Citation
GB/T 7714
Dong, B,Xu, F,Hu, XF,et al. In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample[J]. SCIENTIFIC WORLD JOURNAL,2014.
APA Dong, B.,Xu, F.,Hu, XF.,Qu, HY.,Kang, D.,...&xufeng3@ustc.edu.cn.(2014).In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample.SCIENTIFIC WORLD JOURNAL.
MLA Dong, B,et al."In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample".SCIENTIFIC WORLD JOURNAL (2014).
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