一种无人机倾斜摄影测绘研究  

Research on a kind of UAV tilt photogrammetry

作　　者：程羲[1] 郑孝波 任英桥 岳军红[4] Cheng Xi;Zheng Xiaobo;Ren Yingqiao;Yue Junhong(School of Civil Engineering,Hanzhong Vocational and Technical College,Shaanxi Hanzhong,723000,China;Infrastructure Department of Xi'an Aeronautical University,Shaanxi Xi'an,710077,China;Construction Department of Shaanxi Railway Institute,Shaanxi Weinan,714000,China;School of Surveying,Mapping and Testing,Shaanxi Railway Institute,Shaanxi Weinan,714000,China)

机构地区：[1]汉中职业技术学院土木建筑工程学院,陕西汉中723000 [2]西安航空学院基建处,陕西西安710077 [3]陕西铁路工程职业技术学院基建处,陕西渭南714000 [4]陕西铁路工程职业技术学院测绘与检测学院,陕西渭南714000

出　　处：《机械设计与制造工程》2023年第4期112-115,共4页Machine Design and Manufacturing Engineering

摘　　要：基于无人机倾斜摄影测绘获得的多视点图像具有高重叠、多角度的特点,提出了一种改进的无人机多片前方交会倾斜立体测绘方案。自动选择多幅底高较好的图像对,在多幅图像中找到具有相同像点的同一地物进行立体测绘,从而提高整体测绘精度。以某区域247幅无人机倾斜摄影图像为例,对所提方法进行仿真验证。结果表明,所提方法平均达标率为55.39%,平均精度为0.0436 m。与传统方法相比,达标率提高了18.1%,平均精度提高了0.0777 m。In order to improve the limited coordinate accuracy of traditional UAV mapping,in the process of multiple imaging,considering the characteristics of high overlap and multi angle of multi view images obtained by UAV tilt photogrammetry,an improved UAV multi-slice forward intersection tilt stereo mapping scheme are proposed.It can automatically select multiple image pairs with better bottom height,and find the same ground object with the same image point in multiple images for three-dimensional mapping,so as to improve the overall mapping accuracy.In the simulation stage,247 tilt camera images of UAV in a certain area are taken as an example to verify the proposed scheme.The simulation results show that the average compliance rate of this method is 55.39%and the average accuracy is 0.0436 m.Compared with the traditional method,the standard rate is increased by 18.1%,and the average accuracy is improved by 0.0777 m.

关 键 词：无人机 倾斜摄影 立体测绘 多片前方交会 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]