Application of Stereovision-based Crack Detection Technique in Concrete Surface Evaluation

摘要：

　　To assess the crack width on concrete surface, a crack width detection technique based on stereovision is presented in this study.By projecting the crack image on the space plane where concrete surface locates, the 3 D coordinates of crack edge are achieved according to the stereovision principle.The crack width is de tected by the minimum distance method and the proposed crack image recognition algorithm.The experi ments are conducted on two concrete beams destroyed in static test, the crack width curves of two inspection zone of each beam are obtained.Compared with the micro-detector, experimental results indicate that the crack width inspection algorithm based on stereovision can accurately measure the crack width, verifying the proposed approach is feasible and reliable for detecting the crack width of concrete surface.

作者: Baohua Shan

作者单位: School of Civil Engineering, Harbin Institute of Technology, Harbin, China

会议类型: 国际会议

会议名称: The 5th International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS2013)(第五届创新和可持续发展土木工程结构国际学术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 334-341

在线出版日期: 2013-07-06（万方平台首次上网日期，不代表论文的发表时间）