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《Engineering Journal of Wuhan University》 2008-01
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Edge detection of concrete mesostructure with CT image

JIANG Yuan,BAI Wei,PENG Gang(College of Civil & Hydropower Engineering, China Three Gorges Univ., Yichang 443002,China)  
According to the character of CT image and the theory of edge detection,many methods such as Laplace method,Canny method, Roberts method, Prewitt method and Sobel method, have been used for the edge detection of CT image. The results show that the Laplace and Canny methods are better than Roberts,Prewitt and Sobel methods on the continuity and intergrality of the edge. An dealer result has been obtained after modified the edge, and then loads into the software of finite element method to gain the concrete mesostructure model. The research results show that the reality of the numerical concrete finite element model could be improved by the method; and the numerical calculation results are in concordance with the mechanics experiment results.
【Fund】: 国家自然科学基金资助项目(编号:50679039);; 国家自然科学基金重点资助项目(编号:90510017)
【CateGory Index】: TU528
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