摘要
针对地质灾害应急测绘精准快速成图的特殊需求,笔者对当前热门的机载LiDAR测量技术展开相关研究。结合实例,对该系统应用于应急测绘中的点云数据采集和处理流程进行了详细探讨,同时检测了点云精度,最后对基于机载LiDAR技术的地质灾害数据分析应用进行了介绍。研究结果表明:相比常规的卫星遥感和无人机航测手段,机载LiDAR测量技术具有穿透性强、受天气影响小、数据精度高、作业更加高效等优点,其应用于地质灾害应急测绘具有独特的优势。
In view of the special needs of accurate and rapid mapping of geological disaster emergency surveying and mapping,the author carried out relevant research on the current popular airborne LiDAR measurement technology.Combined with an example,the point cloud data acquisition and processing flow of the system applied in emergency surveying and mapping is discussed in detail,and the point cloud accuracy is detected.Finally,the application of geological disaster data analysis based on airborne LiDAR technology is introduced.The results show that compared with the conventional satellite remote sensing and UAV aerial photogrammetry methods,airborne LiDAR measurement technology has the advantages of strong penetration,less affected by the weather,high data accuracy,more efficient operation and so on,which has unique advantages in the application of geological disaster emergency mapping.
作者
钟国文
ZHONG Guowen(The Seventh Geological Brigade of Guangdong Geological Bureau,Huizhou 516008,China)
出处
《测绘与空间地理信息》
2023年第4期197-200,共4页
Geomatics & Spatial Information Technology
关键词
机载LIDAR
地质灾害
应急测绘
精度
airborne LiDAR
geological disasters
emergency surveying and mapping
accuracy
