摘要
误差传播定律反映了直接观测量的中误差对间接观测量中误差的影响,通过三维激光扫描技术获取点云数据,点云数据本身的精度和后续处理的精度与可靠性对各种工程具有全局性的意义。基于此,将误差理论和误差传播定律应用在三维激光扫描技术上,分析了点云数据的误差来源及传播规律。采用点云数据实例演示了提高点云数据处理精度的过程,通过实例实验进行高压塔数据的配准,验证了ICP算法的可行性以及误差范围符合要求。
The law of error propagation reflects the influence of the direct observation error on the indirect observation error. Through the 3D laser scanning technology to obtain the point cloud data, the accuracy of the point cloud data itself and the accuracy and reliability of the subsequent processing are of global significance for various projects. In this paper, we applied the error theory and error propagation law into 3D laser scanning technology, and analyzed the error sources and propagation rules of point cloud data. Finally, we used a point cloud data example to demonstrate the process of improving the precision of the point cloud data processing. Through the example experiment, we carried out the data registration of the high pressure tower, and obtained the conclusion, which verified the feasibility of the ICP algorithm and the error range met the requirements.
出处
《地理空间信息》
2019年第10期45-48,I0007,共5页
Geospatial Information
基金
国家自然科学青年基金资助项目(41301598)
关键词
误差分析
误差传播
激光扫描
点云处理
error analysis
error propagation
laser scanning
point cloud processing
