基于3D Mapping软件的LiDAR点云数据的等高线提取  

Contour Extraction of LiDAR Point Cloud Data Based on 3D Mapping Software

作　　者：杜金莉 DU Jinli

机构地区：[1]安徽省第一测绘院,安徽合肥230031

出　　处：《地理空间信息》2021年第4期113-114,130,I0007,共4页Geospatial Information

摘　　要：基于Geoway 3DMapping软件,对LiDAR点云处理后生成的2×2 m间隔的DEM数据进行滤波,提取1∶10000的等高线数据。经过实验,研究总结出提取等高线的最优方法、步骤及生产中的常见问题和解决方法,提取的等高线成果地貌形态逼真,等高线连续性好、形态美观、精度高,符合规范要求,为提高成图质量和作业效率提供了良好的技术保障。In this paper,based on Geoway 3D Mapping software,we filtered the DEM data of 2 m×2 m interval generated by LiDAR point cloud processing,and then extracted the contour data of 1:10000.Through experiments,we summarized the optimal method and steps of extracting contour and the common problems and solutions in production.The results of contour extraction have lifelike landform morphology,good contour continuity,beautiful shape and high precision,which can meet the requirements of specifications,and provide a good technical guarantee for improving the mapping quality and operation efficiency.

关 键 词：LIDAR 数字高程模型(DEM) 等高线 高程点 

分 类 号：P231[天文地球—摄影测量与遥感]