摘要
针对现今隧道裂缝检测准确度低与安全预警方面不足的问题,对隧道裂缝的检测算法、宽度计算方法及危害评级方法进行研究。提出一种利用PCA降维弱化噪声,泊松融合法加强裂缝对比度的裂缝分割法,并以此为基础设计一种将图像分块后测量投影点的欧氏距离的裂缝宽度计算方法。在CMOS相机获取的600张图像实验结果中,分割算法能精准检测隧道裂缝的区域,使宽度计算方法将裂缝宽度的估算值误差控制在5%左右,对裂缝进行有效的危害性评级与安全预警。
To solve the problems of low accuracy of tunnel crack detection and insufficient safety early warning,the detection algorithm,width calculation method and hazard rating method of tunnel crack detection were studied.A crack segmentation method was proposed,in which PCA dimension reduction was used to weaken noise and Poisson fusion method was used to enhance crack contrast.On this basis,a crack width calculation method was designed to measure the Euclidean distance of projection points after image segmentation.Experimental results of 600 images obtained by CMOS camera show that,the segmentation algorithm can accurately detect the crack area,so that the width calculation method can control the estimated error of crack width to 5%,and effective hazard rating and safety early warning of cracks are carried out.
作者
陈立潮
张媛媛
秦宇强
曹建芳
张锦
CHEN Li-chao;ZHANG Yuan-yuan;QIN Yu-qiang;CAO Jian-fang;ZHANG Jin(School of Computer Science and Technology,Taiyuan University of Science and Technology,Taiyuan 030024,China;Department of Computer,Xinzhou Teachers University,Xinzhou 034000,China;Department of Construction Machinery,Shanxi Traffic Vocational and Technical College,Taiyuan 030031,China;School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《计算机工程与设计》
北大核心
2020年第12期3479-3484,共6页
Computer Engineering and Design
基金
山西省交通厅科技项目计划基金项目(2019-1-9)
山西省自然科学基金项目(201701D21059)。
关键词
隧道裂缝
裂缝检测
裂缝宽度
危害等级
安全预警
tunnel crack
crack detection
crack width
hazard grade
safety early warning
作者简介
陈立潮(1961-),男,山西万荣人,博士,教授,CCF高级会员,研究方向为智能信息处理;张媛媛(1995-),女,山东泰安人,硕士研究生,研究方向为图像处理与模式识别;秦宇强(1976-),男,山西新绛人,博士,副教授,研究方向为大数据人工智能;通讯作者:曹建芳(1976-),女,山西忻州人,博士,教授,CCF高级会员,研究方向为数字图像理解、大数据技术;张锦(1983-),女,甘肃兰州人,博士研究生,讲师,研究方向为工程机械液压系统控制与设计。E-mail:kcxdj122@126.com。
