摘要
针对结构复杂的历史建筑物给传统测绘带来的"难测绘""精度低""工期长"等痛点,在分析三维激光扫描技术特点的基础上,本文探索性地采用徕卡公司最新生产的第八代高精度三维激光扫描仪P40获取历史建筑物内外部结构的三维点云数据。利用专业的点云数据处理软件Cyclone 9.1及Auto CAD插件Cloud Worx对获取到的点云数据进行拼接、坐标系归一化、去噪、合并、切割、提取轮廓线等一系列操作,最终顺利绘制出了扫描建筑物的各个立面图及分层平面图,以CAD线划图的形式还原了该历史建筑物的原貌。结果表明,三维激光扫描技术在结构复杂、变形严重的历史建筑物原貌恢复方面具有传统测绘方法不可比拟的优势,无疑是今后传统测绘转型升级的一个重点新方向。
In order to solve such pain points as hard task,low precision,long duration,this paper attempts to capture the point clouds data of a historical building by employing the laser scanner P4 0,which is the eighth and high-precision 3D laser scanner of Leica Geosystem.Cyclone 9.1,a kind of professional point clouds data processing software,and CloudWorx,the corresponding plugin of AutoCAD,were both used to handle the point clouds data.The processing mainly includes registration,coordinate system unifying,de-noising,merging,segmentation and contour extracting,etc.Finally,the plan and elevation are completed,restoring the original leatures of the historical building in the form of digital line graph.It turned out that 3D laser scanner technology is a future direction of great significance in the transformation and upgrading of traditional surveying and mapping.
作者
刘永锋
李翅
周凯
李浩
刘传逢
Liu Yongfeng;Li Chi;Zhou Kai;Li Hao;Liu Chuanfeng(Wuhan Geomatic Institute,Wuhan 430022,China)
出处
《城市勘测》
2018年第2期90-94,共5页
Urban Geotechnical Investigation & Surveying
关键词
三维激光扫描
点云数据
历史建筑物
测绘
3D laser scanner
point clouds data
historical building
surveying
