针对河道测绘中受限于地形和人为因素干扰的问题,研究将无人机航拍技术应用于河道的测绘研究.首先利用控制点设计技术,对无人机测绘过程中的控制精度进行量化,然后利用PostFlight Terra 3D软件和畸形图像纠正,提升测绘图像的精度.结果显示,研究构建的无人机航拍测绘方法的测绘精度和稳定性明显优于现有无人机测量技术.同时,该方法还具有高效、精确、快速的特点,可以大幅缩短测绘周期,提高数据的精度和可信度.研究表明,该方法能将无人机航拍技术更好地进行应用,能够更好满足河道测绘的需求,推动河道测绘、规划和管理工作的现代化.
Research on Application of Drone Aerial Photography Technology in River Surveying and Mapping
To address the issue of terrain and human interference in river surveying,this study aims to apply drone aerial photography technology to river surveying research.The study first quantified the control accuracy of unmanned aerial vehicle(UAV)surveying process using control point design technology,and then improved the accuracy of surveying images using PostFlight Terra 3D software and distorted image correction.The results show that the surveying accuracy and stability of the unmanned aerial vehicle(UAV)aerial survey method constructed in the study are significantly better than existing UAV measurement technologies.At the same time,this method also has the characteristics of efficiency,accuracy,and speed,which can greatly shorten the surveying cycle,improve the accuracy and credibility of the data.This indicates that this method can better apply drone aerial photography technology,better meet the needs of river surveying,and promote the modernization of river surveying,planning and management work.
drone aerial photography technologyriver surveying and mappinglow altitude photographyimage processing
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