摘要
航空摄影测量是当代快速获取地理信息的重要技术手段。传统的测量手段通过全站仪、水准仪、经纬仪以及全球定位系统(Global Positioning System,GPS)等测量仪器获取地理数据信息,但这些方式具有生产周期长、工作步骤繁琐、受环境因素影响大、人员需求多、成本费用高等缺点。以贵阳市阿哈湖水库区域测量为工程背景,探讨了基于无人机航空摄影测量的正射影像图制作,精度验证表明,最大点位中误差为0.563 m,平均点位中误差为0.420 m,符合平地平面位置中误差0.6 m的精度要求。
Aerial Photogrammetry is an important technological means for quickly obtaining geographic informa⁃tion in contemporary times.Traditional measurement methods obtain geographic data information through measur⁃ing instruments such as total stations,levels,theodolites,and Global Positioning System(GPS).However,these methods have the disadvantages of long production cycles,cumbersome work steps,high environmental factors,high personnel demand,and high cost.Taking the measurement of the Aha Lake Reservoir area in Guiyang City as the engineering background,this paper explores the production of orthophoto maps based on unmanned aerial ve⁃hicle(UVA)aerial photogrammetry.The accuracy verification shows that the maximum point mean square error is 0.563,and the average point mean square error is 0.420,which meets the precision requirement of 0.6 m in flat ground position.
作者
周贵强
ZHOU Guiqiang(Guiyang Surveying and Mapping Institute,Guiyang,Guizhou Province,550081 China)
出处
《科技资讯》
2024年第17期46-48,共3页
Science & Technology Information
关键词
无人机
遥感
数字地形模型
数字正射影像图
UAV
Remote sensing
Digital terrain model
Digital orthophoto maps
