基于无人机倾斜摄影的道路交通事故现场三维建模

Road traffic accident scene 3D modeling based on unmanned aerial vehicle oblique photography

无人机倾斜摄影具有数据采集快捷、三维建模速度快等优势,是各类场景数据获取的重要方式。文章分析了道路交通事故现场倾斜摄影与三维建模的技术流程,结合实例分析了典型道路交通事故现场数据采集的效率和三维模型的精度。结果显示:外业采集的时间低于10 min,三维模型上特定目标尺寸量取的绝对误差不超过2 cm,能够满足道路交通事故现场勘测的特殊需求。

Unmanned aerial vehicle(UAV)oblique photography has the advantages of fast data collection and fast 3D modeling speed.It is an important method to obtain various scene data.This paper analyzes the technical process of oblique photography and 3D modeling of road traffic accident scene,and analyzes the efficiency of data collection and the accuracy of 3D model of typical road traffic accident scene with examples.The results show that the time for field collection is less than 10 minutes,and the absolute error of the measurement of specific target size on the 3D model is less than 2 cm,which can meet the special needs of road traffic accident scene survey.