摘要
针对无人机面向古塔的倾斜监测提出了一个精细化的三维航线规划方案,代替传统面向地形测绘的五向飞行的规划模式。该方案采用无人机环绕加上升的飞行方式,结合近景的摄影测量,获得被测建筑更加精细的三维构造并使得不同高度部分的精度更统一,尤其是像古塔一类有一定高度且占地较小的建筑。以上海现存13座古塔为研究对象,控制包括重叠度、飞行高度、镜头焦距、离被测建筑距离等参数进行摄影测量及模型构建,最后将该方法得到的成果和五向飞行航测法以及传统测量得到的数据对比。实验表明,该方法相较之前对建筑物侧面特征点的提取更精准,构建表面纹理更精细,有效提高了无人机建筑物倾斜监测的精度。
In this paper,we presented a refined 3D air route planning scheme for the oblique monitoring of ancient towers employing unmanned aerial vehicles(UAVs).The proposed approach utilized the flight mode of UAV orbiting and ascending,combined with close-range photogrammetry,to obtain a more refined 3D structure of the measured building and made the accuracy of different height parts more uniform,especially for buildings like ancient pagodas that had a certain height and occupy a small area.Taking the 13 existing ancient pagodas in Shanghai as the research objects,we carried out photogrammetry and model construction by controlling parameters including overlap degree,flight altitude,lens focal length,and distance from the measured buildings.Finally,we compared the results obtained by this method with the data obtained by the five-way flight aerophotogrammetry method and traditional measurement.Experimental results indicate that this method,compared to previous approaches,achieves more accurate extraction of architectural features on the building’s sides,produces finer surface textures,and effectively enhances the precision of UAV oblique monitoring of buildings.
作者
史晟恺
陈燕
张麟
SHI Shengkai;CHEN Yan;ZHANG Lin(Shanghai Surveying and Mapping Institute,Shanghai 200063,China)
出处
《地理空间信息》
2025年第6期92-95,共4页
Geospatial Information
关键词
无人机
古塔
倾斜监测
航线规划
UAV
ancient pagoda
oblique Monitoring
air route planning
