摘要
为提高无人机倾斜摄影测量成果点位的精度,提出了一种在相同的工作量下精度最优的刺点方案。针对空中三角测量解算时对控制点所在影像的选取,分别进行了三种不同实验(全部刺于下视影像、全部刺于侧视影像、刺于5个方向影像)。通过对3种刺点方案的实验结果对比分析,得出在刺点数相同的条件下刺点方式对实验结果有影响,当像控点刺于5个方向影像时,空间坐标精度最高。研究可为无人机倾斜摄影技术应用于工程实践提供科学参考。
In order to improve the accuracy of the points’ position which was acquired through the technology of unmanned aerial vehicle oblique photogrammetry,a solution was proposed for the best precision of choosing point under the same workload. Three different experiments( all in the low view pictures,all in the side view pictures and in 5 different view pictures) are performed on the selection of control point images in the air triangulation solution. The results show that different solutions would influence the precision of the spatial coordinate under the same conditions. In the condition of choosing the same number of points,the solution of in 5 different directions got the best accuracy. It would provide a reference for the application of oblique photogrammetry technology in engineering practice.
作者
王丽霞
王晨辉
刘招
张双成
杨耘
WANG Li-xia;WANG Chen-hui;LIU Zhao;ZHANG Shuang-cheng;YANG Yun(College of Geological Engineering and Surveying,Chang'an University,Xi'an 710054;College of Geosciences and Resources,Chang'an University,Xi'an 710054;School of Environmental Science and Engineering,Chang'an University,Xi'an 710054)
出处
《科学技术与工程》
北大核心
2019年第10期237-240,共4页
Science Technology and Engineering
基金
国家自然科学基金(41471452)
中央高校基本科研业务费(300102269201
300102299206
300102269205)资助
关键词
无人机
像控点
精度
三维模型
unmanned aerial vehicle
control point
precision
3D model
