三维激光扫描技术检测测绘成果精度的应用  

Detecting precision of surveying and mapping products with 3D laser scanning technology

作　　者：秦红艳[1] QIN Hongyan(Guangzhou Research Institute of Urban Planning ＆ Design Survey,Guangzhou 510060,China)

机构地区：[1]广州市城市规划勘测设计研究院,广东广州510060

出　　处：《测绘工程》2018年第10期37-41,45,共6页Engineering of Surveying and Mapping

基　　金：广州市科技计划项目(201704030102);广东省科技计划项目(2015B090903020)

摘　　要：测绘成果的精度检测是测绘生产技术流程的必要环节。采用三维激光扫描仪获取激光点云数据,基于点云从数学精度、地理精度两方面检测测绘成果的质量:在点云中识别提取对应的地物平面坐标、高程注记点高程值,量取地物点间距,生成测绘成果数学精度的统计表;基于点云立体交互检查地理要素的遗漏、表达准确性。该方法完善了三维激光扫描测绘生产技术体系,与传统检测方法相比,具有直观、客观、高效率等特点。Detecting precision is an essential and important link in the technology process of surveying and mapping. Laser point cloud data is collected by 3D laser scanner, and then the surveying and mapping products are detected from the two aspects of mathematical precision and geographic precision through point cloud： （a） Extract plane coordinates of surface features and elevation value of elevation point in point cloud, and then measure distance between surface features, lastly make the statistical tables of mathematical precision of surveying and mapping products; （b） The omission, expression and topological relationship of geographical elements are inspected by human-computer interaction mode in point cloud. The technology system of 3D laser scanning system measurement is consummated with the method, which is intuitive, objective and efficient.

关 键 词：精度检测 测绘成果 三维激光扫描技术 数学精度 地理精度 

分 类 号：P232[天文地球—摄影测量与遥感]