几种建筑物立面测量方法对比分析

Comparison and Analysis of Several Building Elevation Measurement Methods

本文研究全站仪、三维激光扫描和无人机三种建筑物立面测量的方法。全站仪采用传统的根据绘制的草图单点连线绘图的方法,三维激光扫描采用点云正射影像绘图的方法,无人机采用3D实景模型正射影像绘图的方法。研究结果表明:采用三维激光扫描测量的方法,能够快速完整的获取建筑物立面数据,提高建筑物立面测量效率,精度相对于全站仪测量的方法高,而采用无人机测量的方法,由于受重建模型精度的影响,立面测量精度相对于地面三维激光扫描较低。对工程的工期、投资和规划设计都有着重要的意义。

This paper studies three methods of building elevation measurement: total station, three-dimensional laser scanning and UAV. Total station adopts the traditional method of drawing sketches by single point connection, three-dimensional laser scanning adopts the method of point cloud orthophoto mapping, and unmanned aerial vehicle adopts the method of Orthophoto mapping of 3D real scene model. The results show that the method of three-dimensional laser scanning measurement can acquire building elevation data quickly and completely, and improve the efficiency of building elevation measurement. Compared with total station measurement method, the accuracy of elevation measurement using UAV measurement method is lower than that of ground three-dimensional laser scanning because of the influence of reconstruction model accuracy. It is of great significance to the time limit, investment and planning and design of the project.