地铁隧道变形监测仪器视觉检测系统标定  

Calibration for Visual Inspective System on Metro Tunnels Deformation Monitoring Device

作　　者：赵炯[1] 朱海涛[1] 熊肖磊[1] 张根雷[1] 屈剑平[1] 

机构地区：[1]同济大学机械与能源工程学院机械电子研究所,上海201804

出　　处：《仪表技术与传感器》2014年第8期35-37,39,共4页Instrument Technique and Sensor

基　　金：上海市科委科研计划项目资助项目(08201202103)

摘　　要：为了提高地铁隧道变形监测仪器的检测精度,提出了针对其视觉检测系统的标定方法。文中分析了视觉检测系统的检测精度和影响其检测精度的因素;分别对图像灰度值、摄像机内参数和摄像机外参数进行标定;通过模拟隧道现场环境、搭建实验平台,获取检测数据,验证了标定方法的可行性。实验结果表明:检测系统经过标定,检测精度明显改善,满足监测仪器的检测精度要求。To improve the detection accuracy of metro tunnels deformation monitoring device, a calibration method was pro- posed for the visual inspective system. It analyzed the detection accuracy of system and its influencing factors ; then, it calibrated the image gray values, internal and external parameters of the camera;To verify the feasibility of calibration method, test data was ob- tained by simulating site environment of tunnels and building a platform for calibration. Experiment results show that the detection accuracy has been significantly improved and met the demand of monitoring device after calibration.

关 键 词：监测仪器 视觉检测 检测精度 影响因素 标定 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]