姚连璧,张邵华,王子轩

• 1:同济大学测绘与地理信息学院
• 2:上海京海工程技术有限公司

摘要(Abstract)：

针对常见的利用靶球对激光断面扫描仪标定的静态、繁琐、低精度、不具实时性,该文设计了一种平面反射片标靶,组合利用里程计与惯性测量单元(IMU)提供的定位和姿态参数,移动扫描获得隧道点云数据,根据反射片的高反射率,通过点集聚类算法与形态学滤波处理,获得标靶中心在扫描仪基准坐标系下的坐标,从而间接实现断面扫描仪的标定。IMU经过倾角掉头实验,完成倾角补偿,得到轨道面下的点云。最后利用隧道环片的设计距离,在隧道壁上布设设计的标靶对里程计进行校准,克服了里程计长距离误差累积的弊端。标定的结果验证了方案的可行性,可快速高精度的实现扫描仪的现场动态标定与里程补偿等,提高点云质量。

关键词(KeyWords)： 隧道扫描;标定;反射片标靶;坐标转换;里程校准

Abstract:

Keywords:

基金项目(Foundation): “十三五”国家重点研发计划资助项目(2016YFB1200602-02);; 国家自然科学基金项目(41771482)

作者(Author): 姚连璧,张邵华,王子轩

DOI: 10.16251/j.cnki.1009-2307.2019.08.011

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