无人机倾斜摄影测量精度优化研究与分析

现状地形图是工程设计前期的重要基础数据。无人机倾斜摄影测量技术具有作业机动性高、节约人力成本等优势,但是该技术成果的高程精度较低。为提高无人机测量高程精度,将无人机倾斜摄影技术与传统测绘技术——“1+1”RTK和几何水准相结合的测量方案,在保证测量作业效率的前提下,使所测数据精度满足1:500大比例尺测图要求。测量数据不但提升高程精度,而且具有较大的工程实践价值。

Research&Analysis on Accuracy Optimization of UAV Tilt Photogrammetry

The current topographic map is an important basic data in the early stage of engineering design.Unmanned aerial vehicle tilt photogrammetry technology has the advantages of high maneuverability&labor cost saving,but the height accuracy of the technical results is low.To improve the accuracy of UAV measurement elevation,a measurement program that combines UAV oblique photography technology with traditional surveying and mapping technology:1+1 RTK&geometric leveling.Under the premise of ensuring the efficiency of measurement operations,the accuracy of the measured data can meet the requirements of 1:500 large-scale surveying.The measurement data not only improves the elevation accuracy,but also has greater engineering practical value.