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S.-H. Tung¹, M.-H. Shih² and W.-P. Sung³

¹Department of Civil and Environmental Engineering
National University of Kaohsiung, Kaohsiung, Taiwan
²Department of Civil Engineering
National Chi Nan University, Nantou, Taiwan
³Department of Landscape Architecture
National Chin-Yi University of Technology, Taichung, Taiwan

doi:10.4203/ccp.102.235

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S.-H. Tung, M.-H. Shih, W.-P. Sung, "Measuring Small Displacements using the Local Three-Dimensional Digital Image Correlation Method", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 235, 2013. doi:10.4203/ccp.102.235

Keywords: local three-dimensional digital image correlation, displacement measurement, small displacement.

Summary

The usage of the three-dimensional digital image correlation method to measure three-dimensional displacements can be divided into two types. One is to measure the spatial coordinates of measuring points by analyzing the images. Then displacements of these points can be calculated using the spatial coordinates of these points obtained at different stages. Another way is to calibrate the parameters for individual measuring points locally. Then the local displacements of these points can be measured directly. This study proposes a simple local three-dimensional digital image correlation method. This method can be used to measure small displacements in the three-dimensional space through a simple calibration process. A laboratory experiment is carried out to prove the accuracy of this method, and the results show that the measurement can achieve very high accuracy for small displacements.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 235 Measuring Small Displacements using the Local Three-Dimensional Digital Image Correlation Method S.-H. Tung¹, M.-H. Shih² and W.-P. Sung³ ¹Department of Civil and Environmental Engineering National University of Kaohsiung, Kaohsiung, Taiwan ²Department of Civil Engineering National Chi Nan University, Nantou, Taiwan ³Department of Landscape Architecture National Chin-Yi University of Technology, Taichung, Taiwan doi:10.4203/ccp.102.235 purchase the full-text of this paper Full Bibliographic Reference for this paper S.-H. Tung, M.-H. Shih, W.-P. Sung, "Measuring Small Displacements using the Local Three-Dimensional Digital Image Correlation Method", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 235, 2013. doi:10.4203/ccp.102.235 Keywords: local three-dimensional digital image correlation, displacement measurement, small displacement. Summary The usage of the three-dimensional digital image correlation method to measure three-dimensional displacements can be divided into two types. One is to measure the spatial coordinates of measuring points by analyzing the images. Then displacements of these points can be calculated using the spatial coordinates of these points obtained at different stages. Another way is to calibrate the parameters for individual measuring points locally. Then the local displacements of these points can be measured directly. This study proposes a simple local three-dimensional digital image correlation method. This method can be used to measure small displacements in the three-dimensional space through a simple calibration process. A laboratory experiment is carried out to prove the accuracy of this method, and the results show that the measurement can achieve very high accuracy for small displacements. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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