摘要
为提升年度国土变更调查的精度与效率,探究了航测法的应用价值。基于某山区500 km^(2)的实测案例,利用无人机采集5 cm/px分辨率影像,通过影像拼接、几何校正与镶嵌技术生成高精度地籍图。结果显示:航测法实现98%区域覆盖,边界识别精度为±0.10 m,分类精度超95%;相较于传统测绘,航测法的数据处理效率提升50%~60%,成本降低50%。结果表明:航测法可以高效支撑国土变更调查。未来,需要强化环境适应性并融合智能算法,以优化动态管理。
In order to improve the accuracy and efficiency of the annual land change survey,the application value of the aerophotographic method was explored.Based on a field case of 500 km^(2)in a mountainous area,high-resolution images with a resolution of 5 cm/px were collected by using drones,and high-precision cadastral maps were generated through image stitching,geometric correction,and mosaicking technology.The results showed that the aerophotographic method achieved 98%area coverage,with boundary identification accuracy of±0.10 m and classification accuracy exceeding 95%,and compared to traditional surveying,the data processing efficiency of the aerophotographic method increased by 50%to 60%,and costs were reduced by 50%.The results indicate that the aerophotographic method can efficiently support land change surveys.In the future,it is necessary to enhance envi-ronmental adaptability and integrate intelligent algorithms to optimize dynamic management.
作者
关强
GUAN Qiang(Baoji Surveying and Mapping Institute,Baoji,Shaanxi Province,721000 China)
出处
《科技资讯》
2025年第10期39-41,共3页
Science & Technology Information
关键词
航测法
无人机
地籍测绘
国土变更调查
资源管理
Aerophotographic method
Unmanned aerial vehicle
Cadastral surveying
Land change investigation
Resource management
