摘要
无人机倾斜摄影测量能快速获取地面多角度影像,生成倾斜三维模型,用于快速获取空间坐标,其效率优于传统测量。近岸滩涂野外测量受涨落潮时间、滩涂类型和作业面积的影响,传统高程测量方法较为困难,本文提出了一种基于无人机倾斜摄影测量的近岸滩涂高程测量的技术路线,利用无人机采集影像生成高精度实景三维模型作为近岸滩涂高程测量的基础数据,并利用全站仪实地测量检查点进行精度验证,经实验,其高程中误差优于5 cm,满足滩涂高程测量的精度要求。
UAV tilt photogrammetry can quickly obtain multi-angle images of the ground,generate tilt 3D models,and use them to quickly obtain spatial coordinates.Its efficiency is better than traditional measurement.The field survey of nearshore tidal flat is affected by the time of rising and falling tide,the type of tidal flat and the area of operation,and the traditional elevation survey method is relatively difficult.This paper proposes a technical route of nearshore tidal flat elevation survey based on UAV tilt photogrammetry,which uses the UAV acquisition image to generate high-precision real-time 3D model as the basic data of nearshore tidal flat elevation survey,and uses the total station to measure the check points in the field to verify the accuracy,the error is better than 5cm,which meets the accuracy requirements of tidal flat elevation survey.
作者
刘鹏
赵焕祯
崔光耀
秦浩森
宫宁
LIU Peng;ZHAO Huanzhen;CUI Guangyao;QIN Haosen;GONG Ning(Qingdao Surveying&Mapping Institute,Qingdao 266033,China;Qingdao Engineering Research Center of Geographical Information of Underground Space,Qingdao 266033,China)
出处
《城市勘测》
2024年第4期138-141,共4页
Urban Geotechnical Investigation & Surveying
关键词
倾斜摄影
近岸滩涂测量
高程测量
实景三维
oblique photography
nearshore beach survey
elevation survey
realistic 3D