摘要
采用3维激光扫描技术快速采集滑坡体地形点云信息,并提取滑坡体微地貌信息,为滑坡监测提供基础技术支持。3维激光扫描技术的数据处理主要包括外业数据采集、点云数据配准、地貌数据获取与非地貌点云数据过滤、地形图生成等过程,并着重介绍其工作原理与处理方法。采用3维激光扫描技术能够高效准确实时的监测地质灾害,对预防灾害的发生提供了决策作用。
The point cloud information has been rapid collected by three - dimensional laser scan technology, and the landslide micro- photography information has been extracted from it. This informationprovides the infrastructure technology support for the landslide mo- nitoring. The data processing by three - dimensional laser scan technology mainly includes ： field data collection, point cloud data reg- istration, geomorphology information acquisition, non - geomorphology data filtration, topographic map creation. This paper emphati- cally introduces the working principle and processing method of three - dimensional laser scan technology. The monitoring of geological hazard is high efficient, accurate and real- time though three -dimensional laser scan technology. This method provides decision- making function for disaster prevention.
出处
《测绘与空间地理信息》
2013年第10期198-201,204,共5页
Geomatics & Spatial Information Technology
关键词
3维激光扫描
点云数据
配准
数据过滤
地形图制作
three - dimensional laser scan technology
point cloud
data registration
data filtration
topographic map creation
