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本文结合实际公路线路勘测工程,讨论机载激光雷达技术在公路勘测中的应用优势,并具体从利用LIDAR数据提取纵横断面可能存在的相关问题及解决方法,机载激光雷达在不同时期对植被穿透能力和结合影像进行激光点云分类处理进行分析,给出了一些行之有效提高LIDAR数据的精度,保证能获取到高质量的断面数据的策略。
In this paper, the practical advantages of airborne Lidar (LIDAR) technology in highway survey are discussed based on the survey of actual road routes. Based on the possible problems and solutions of longitudinal and cross-section extraction using LIDAR data, Through the analysis of laser spot cloud classification and combining with images, this paper gives some strategies to improve the accuracy of LIDAR data and ensure the acquisition of high-quality cross-section data.