In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample
Joint Authors
Hu, Xiaofang
Kang, Dan
Dong, Bo
Xiao, Ti-qiao
Qu, Hong-yan
Xu, Feng
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
To 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.
American Psychological Association (APA)
Dong, Bo& Xu, Feng& Hu, Xiaofang& Qu, Hong-yan& Kang, Dan& Xiao, Ti-qiao. 2014. In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1051117
Modern Language Association (MLA)
Dong, Bo…[et al.]. In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample. The Scientific World Journal No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1051117
American Medical Association (AMA)
Dong, Bo& Xu, Feng& Hu, Xiaofang& Qu, Hong-yan& Kang, Dan& Xiao, Ti-qiao. In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1051117
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051117