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Proceedings Paper

An application of digital speckle correlation method: 3D reconstruction of fracture surface
Author(s): Huaiwen Wang; Hongwei Ji; Yong Wang; Hui Miao; Wenquan Shao
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Paper Abstract

Based on DSCM (digital speckle correlation method), a 3D reconstruction technique of a surface is achieved by combining SEM (scanning electron microscope) stereo image pairs with computer vision theory. The factors that affect results' precision in this process are discussed. A quantitative analysis of the obtained 3D surface is carried out by employing fractal theory. The fractal dimension of the reconstructed 3D surface is measured by an improved cubic covering method. As an illustration of the technique, a 3D reconstruction of a rock's facture surface was carried out. The contours and the fractal dimension of the reconstructed 3D surface were obtained. Results indicate that the proposed 3D reconstruction is an effective method to quantificationally analyze fracture surface, which provides an approach to study the microscopic fracture mechanism, fracture progress and fracture characters.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737551 (25 August 2009); doi: 10.1117/12.839328
Show Author Affiliations
Huaiwen Wang, Tianjin Univ. of Commerce (China)
Hongwei Ji, Tianjin Univ. of Commerce (China)
Yong Wang, Tianjin Univ. of Commerce (China)
Hui Miao, Tianjin Univ. of Commerce (China)
Wenquan Shao, Tianjin Univ. of Commerce (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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