摘要
无人机倾斜摄影测量技术近年来已被广泛运用于数字城市建设和应急救灾行业中。为研究三维模型在快速构建过程中的真实性和准确性,以1∶1 000大比例尺三维倾斜模型构建及对其精度的评估为目的,采用固定翼无人机作为航测平台,搭载3镜头数码相机,简要探讨了倾斜摄影的关键技术,总结了基于无人机倾斜摄影的数据采集和处理流程,并着重对相应数据成果进行了精度分析。实验结果表明,各项精度均能满足1∶1 000大比例尺航测内业规范要求。该方法能有效反映真实的地物地貌,大大提高了生产效率,对相关应用具有一定指导意义。
Unmanned aerial vehicle(UAV)oblique photography technology has been widely used in digital city construction and emergency relief in recent years.In order to study the authenticity and accuracy of 3D modeling in the rapid construction process,with the purpose of oblique 3D modeling at large-scale of 1∶1 000 and its accuracy evaluation,this paper uses a fixed-wing UAV as aerial platform equipped with an 3-lens digital camera for data capture,then it presents the key technology of oblique photography.Based on UAV oblique photography,this paper first summarizes the data acquisition and data processing workflow,then focuses on the evaluation the accuracy of the 3D model.Results show that the accuracy can satisfy specifications for office operation of low-altitude digital aerophotogrammetry at large-scale of 1∶1 000,and we can draw the conclusion that it can show the landform factually and effectively under the precondition of accuracy requirements,which increas production efficiency and plays an important role on directing the practical work.
作者
冯雅秀
朱兰艳
龚绪才
FENG Ya-xiu;ZHU Lan-yan;GONG Xu-cai(Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Basic Surveying and Mapping Technology Center,Kunming 650034,China)
出处
《软件导刊》
2018年第4期205-208,共4页
Software Guide
关键词
无人机
倾斜摄影
航线布设
三维建模
精度评估
UAV
oblique photography
flight route
3D modeling
accuracy evaluation
