机载激光雷达技术在乌龙山抽水蓄能电站工程测量中的应用

发布时间：2018-02-25 10:24

本文关键词： 激光雷达技术水利水电工程技术应用乌龙山抽水蓄能电站　出处：《水利水电技术》2017年10期 　论文类型：期刊论文

【摘要】：基于水利工程测量中采用传统航空摄影测量存在像控点布设困难、影像间不易匹配、项目周期长等问题,针对水利水电常见的作业环境和激光点云数据自身的特点,结合乌龙山抽水蓄能电站工程测量项目,介绍了机载激光雷达技术结合传统摄影测量技术在高密度植被覆盖区域的地形测绘应用情况,重点介绍了机载激光雷达点云数据的分类方法,从数据获取、预处理,点云滤波分类、空三加密到成图的每一个环节,实现高密度植被覆盖区域地表信息的提取和测绘成图。通过数据精度的分析,证明机载激光雷达技术相比传统摄影测量与人工测量等测绘手段在复杂植被等困难区域测量方面有较大的优势,在未来水利水电工程测绘领域具有广阔的应用前景。
[Abstract]:Based on the difficulties of setting image control points in traditional aerial photogrammetry in water conservancy engineering survey, the image is difficult to match and the project cycle is long, aiming at the common working environment of water conservancy and hydropower and the characteristics of laser point cloud data itself. Combined with the project of Oolongshan pumped Storage Power Station, this paper introduces the application of airborne lidar technology and traditional photogrammetry technology in topographic mapping of high-density vegetation covered area. This paper mainly introduces the classification method of airborne lidar point cloud data, from data acquisition, preprocessing, point cloud filtering classification, space-three encryption to every link of mapping. To achieve high density vegetation cover area surface information extraction and mapping. Through the analysis of data accuracy, It is proved that the airborne lidar technology has a great advantage over traditional surveying methods such as photogrammetry and manual surveying in surveying difficult areas such as complex vegetation and has a broad application prospect in the field of water conservancy and hydropower engineering surveying and mapping in the future.
【作者单位】：中水北方勘测设计研究有限责任公司;
【分类号】：TV221

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