摘要
道路工程测量是道路工程建设规划设计、施工建造、运营养护管理等各个阶段的基础工作和重要保障.首先概述了无人机倾斜摄影测量技术基本特点;其次结合实践分析无人机倾斜摄影测量技术在道路工程测量中的应用要点.结果表明:无人机飞行高度在80～100 m、像控点间距在150 m以内、地面分辨率在1.5 cm以内时,利用无人机倾斜摄影测量进行城市道路测绘可获取±5 cm的平面与高程精度.
Abstract
Road engineering survey is the fundamental work and important guarantee of the various stages of the planning design,construction,and operation and maintenance management of road engineering construction.Firstly,the basic characteristics of UAV oblique photogrammetry technology are summarized.Secondly,combined with practice,the application points of UAV oblique photogrammetry technology in road engineering survey are analyzed.The results show that when the UAV flies at an altitude of 80～100 m,the space distance of image control points is within 150 m,and the ground resolution is within 1.5 cm,the plane and elevation accuracy of±5 cm can be obtained by using UAV oblique photogrammetry for urban road survey.
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