摘要
数字正射影像图获取快捷,具有很好的现势性和完整性,在测绘行业应用非常广泛,而如何布设像控点,在减少外业工作量的同时又能保证数据精度是正射影像图研究的重点和难点。本文根据航摄区实际情况,研究像控点数量对正射影像图的影响,通过对不同方案下生产的数字正射影像图的精度进行检查和对比,在兼顾作业效率的前提下探讨最优像控点布设方案。
The digital orthophoto map has the advantages of high accuracy,fast acquisition,etc.,has good current situation and completeness,and is widely used in the surveying and mapping industry.How to set up image control points that can reduce the workload in the field while ensuring the data accuracy is the focus and difficulty of orthophoto map research.According to the actual situation of the aerial photography area,this paper studies the influence of the number of image control points on the quality of orthophoto map.Through the inspection and comparison of the accuracy of the digital orthophoto map produced under different schemes,the optimal image control point layout plan is discussed under the premise of taking into account the operating efficiency.
作者
常利军
娄佳慧
CHANG Lijun;LOU Jiahui(The First Geological Environmental Survey Institute of Henan Bureau of Geology and Mineral Exploration and Development,Zhengzhou 450000,China)
出处
《测绘与空间地理信息》
2023年第6期212-214,共3页
Geomatics & Spatial Information Technology
关键词
正射影像
像控点
布设方案
精度
Orthophoto images
image control points
layout plan
accuracy
