摘要
以机载激光雷达测量技术在陕西省镇巴县自强水库工程中的应用为例,从设备选择、航线设计、参数设置、空三计算、点云滤波、影像与点云融合配准及三维建模等多个方面进行论述,通过精度检查验证该方法的可行性.结果表明,采用机载激光雷达测量技术可快速、准确地获取水利枢纽的DEM、DOM、DLG及三维模型等产品,可为水库工程的设计提供可靠的、多元的基础地形数据.
Abstract
Taking the application of airborne lidar measurement technology in Ziqiang Reservoir Project in Zhenba County of Shaanxi Province as an example,the equipment selection,route design,parameter setting,aerial triangulation calculation,point cloud filtering,image and point cloud fusion registration and three-dimensional modeling are discussed.The feasibility of the method is verified by accuracy inspection.The results show that the airborne lidar measurement technology can quickly and accurately obtain the DEM,DOM,DLG and three-dimensional model of the water conservancy project,which can provide reliable and multivariate basic terrain data for the design of the reservoir project.