利用机载LiDAR数据快速制作DEM的技术方法

发布时间：2018-05-06 14:03

本文选题：DEM + 点云滤波　；参考：《测绘标准化》2016年04期

【摘要】：与航空摄影测量相比,LiDAR技术可以不受时间、地形、地面覆盖等限制,具有全天候、直接、快速、高精度、高密度地获取地表三维信息的特点。主要探讨利用机载LiDAR数据快速制作DEM的处理流程和关键技术,并结合生产实例进行精度分析。试验证明,机载LiDAR数据经过一系列专业处理,能快速高效地获取高精度DEM,满足测绘成果要求。
[Abstract]:Compared with aero photogrammetry, LiDAR technology can not be limited by time, terrain and ground cover. It has the characteristics of all weather, direct, rapid, high precision and high density to obtain the three-dimensional information of the surface of the earth. It mainly discusses the processing flow and key technology of the rapid production of DEM by using airborne LiDAR data, and carries out the precision analysis in combination with the production example. It is verified that airborne LiDAR data can be obtained quickly and efficiently through a series of professional processing to achieve high precision DEM and meet the requirements of Surveying and mapping results.

【作者单位】：国家测绘地理信息局第一航测遥感院;
【分类号】：P237;P208

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