摘要
针对多镜头测绘级无人机价格昂贵、技术门槛较高的问题,本文提出利用消费级无人机获取的倾斜影像制作大比例尺地形图的方法。该方法运用消费级单镜头无人机,在RTK(real-time kinematic)辅助的前提下,采用低空飞行、井字形航线设计、高重叠率的作业方案,配以高精度像控点、立体测图方法改进,从而实现大比例尺数字测图。以莆田市农村地籍与房屋调查工程为实践,对该方法的精度进行了分析,结果表明,该方法精度完全能够满足1∶500数字地形图测绘的需要,且作业效率高。
Aiming at the problem of high cost and high technical threshold for multi-lens surveying UAV(unmanned aerial vehicles),a method for making large-scale topographic maps using oblique images acquired by consumer drones is proposed.The method uses the consumer-grade single-lens UAV,under the premise of RTK assistance.The low-altitude,well-shaped route design,high overlap rate operation scheme,high-precision image control point,improved stereo mapping method are adopted to realize large-scale digital topographic mapping.Combined with the project of rural cadastre and housing survey in Putian City,the accuracy of the method is analyzed.The results show that the method can fully meet the needs of 1∶500 digital topographic mapping with high operational efficiency.
作者
许承权
黄小琴
施政
XU Chengquan;HUANG Xiaoqin;SHI Zheng(Ocean College,Minjiang University,Fuzhou 350108,China;Putian Shanhai Surveying and Mapping Technology Co.,Ltd.,Putian 351100,China)
出处
《测绘地理信息》
2020年第1期117-120,共4页
Journal of Geomatics
基金
国家自然科学基金(41404008)
福州市科技计划(2017-G-73)
江西省数字国土重点实验室开放基金(DLLJ201911)
福建省科技计划(2018Y0021).
作者简介
第一作者:许承权,副教授,研究方向为GNSS精密定位、倾斜摄影测量。E-mail:30418388@qq.com
