摘要
采用徕卡MS50三维激光扫描仪获取同济大学试验线点云数据,并结合预处理软件对其进行处理,对点云数据封装并规则化处理后建立基础操作模型,生成轨面下16 mm处特征截面,在此基础上提取、导出线路轨距。经比较,软件提取轨距与人工实测值基本吻合。本次试验实现了在三维模式下轨距的提取,为获取线路轨距数据提供了新的方法。
Leica MS50 3 D laser scanner was used to obtain the point clound data of Tongji university test line.The point clound data were handled by preprocess software,then packaged and regularized.After that,the basic operation model was built and the characteristic section under the rail surface 16 mm was generated.On this basis,rail gauge was extracted and exported.By comparison,rail gauge extracted by software was almost consistent with measured value.This test realized the extraction of rail gauge in 3 D mode,and provided a new method for extraction of rail gauge.
作者
常占奎
CHANG Zhankui(Track Maintenance Department, China Railway Shanghai Bureau Group Co. Ltd., Shanghai 200071, Chin)
出处
《铁道建筑》
北大核心
2018年第6期137-139,共3页
Railway Engineering
关键词
三维激光扫描
点云数据
预处理
特征截面
模型对比
轨距提取
3D laser scanner
Point clound data
Preprocess
Characteristic section
Model comparison
Rail gauge extraction
