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Studies from University of Science and Technology Add New Findings in the Area of Algorithms (In situ investigation of the 3D mechanical...

July 1, 2014



Studies from University of Science and Technology Add New Findings in the Area of Algorithms (In situ investigation of the 3D mechanical microstructure at nanoscale: nano-CT imaging method of local small region in large scale sample)

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators discuss new findings in Algorithms. According to news originating from Hefei, People's Republic of China, by NewsRx correspondents, research stated, "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."

Our news journalists obtained a quote from the research from the University of Science and Technology, "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."

According to the news editors, the research concluded: "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."

For more information on this research see: In situ investigation of the 3D mechanical microstructure at nanoscale: nano-CT imaging method of local small region in large scale sample. Thescientificworldjournal [electronic Resource], 2014;2014():806371 (see also Algorithms).

The news correspondents report that additional information may be obtained from B. Dong, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026, People's Republic of China. Additional authors for this research include F. Xu, X.F. Hu, H.Y. Qu, D. Kang and T.Q Xiao.

Keywords for this news article include: Asia, Hefei, Algorithms, People's Republic of China.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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