无人机航测像控点布设方案探讨

Discussion on the layout scheme of UAV image control points

随着测绘行业技术装备的发展,无人机航空摄影测量已经成了空间数据获取的重要手段。像控点布设是无人机航测的重要工作,像控点数量和布设方案直接影响工作效率和成果文件的精度。文章基于像控点布设的原则与方法,通过某工程实例设置不同的像控点布设方案,得到对应的空中三角测量解算成果。通过对解算成果的分析,论证像控点布设方法对空三解算精度的价值,优选出最经济的像控点布设方案,为今后的航测工作提供参考价值。

With the development of technology and equipment in the surveying and mapping industry,unmanned aerial vehicle aerial photogrammetry has become an important means of obtaining spatial data.The deployment of image control points is an important task in unmanned aerial vehicle aerial survey,and the number and deployment plan of image control points directly affect work efficiency and the accuracy of outcome documents.Based on the principles and methods of image control point layout,different image control point layout schemes are set up through a certain engineering example to obtain corresponding aerial triangulation calculation results.Through the analysis of the calculation results,the value of the placement method of image control points for the accuracy of spatial three point calculation is demonstrated,and the most economical layout plan of image control points is selected,providing reference value for future aerophotogrammetry.