对称分布的高山峡谷地区无人机倾斜摄影像控点布设方法的探讨  

Discussion On the Deployment Method of Drone Oblique Photography Image Control Points in Symmetrically Distributed Mountains and Valleys

作　　者：申恩昌 王明[1] 巨天力[1] 黄林 SHEN Enchang;WANG Ming;JU Tianli;HUANG Lin(PowerChina Northwest Engineering Corporation Limited, Xi'an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《西北水电》2020年第4期43-46,共4页Northwest Hydropower

摘　　要：随着近几年来无人机技术尤其是民用低空无人机技术的高速发展,数字航空摄影测量也发生了翻天覆地的变化,定位模式从GPS/IMU到PPK、RTK技术,拍摄方式从单一的下视镜头到多镜头,不仅可以减少像控点数量,也大大提高了测量精度和可靠性。但在高山峡谷地区,由于存在着地形复杂、落差大、植被茂密等特点,在满足地形测量几何精度的基础上,对航摄像控点布设的密度、点位分布提出了更高的需求。结合实际项目,探讨高山峡谷地区多镜头倾斜摄影像控点布设的方法,对不同的布设方法、密度下生产的三维倾斜模型进行精度检查,验证三维倾斜模型在不同的布设方案下,不同数量的像控点满足相应比例尺地形图精度要求的可行性。With the rapid development of drone technology in recent years,especially civilian low-altitude drone technology,digital aerial photogrammetry has also undergone earth-shaking changes.The positioning mode has changed from GPS/IMU to PPK and RTK technology,and the shooting method has changed from single down-view lens to multi-lens which can not only reduce the number of image control points,but also greatly improve the measurement accuracy and reliability.However,in mountain and valley areas,due to the complex terrain,large drop,dense vegetation,etc.,on the basis of satisfying the geometric accuracy of topographic surveying,higher requirements are put forward for the density and point distribution of aerial camera control points.With actual projects,the article discussed the method of multi-lens oblique photography image control point placement in the mountains and valleys,check the accuracy of the three-dimensional oblique models produced under different deployment methods and densities,and verify the feasibility of deployment of different numbers of image control points which meets the accuracy requirements of the corresponding scale topographic map under different deployment plans.

关 键 词：无人机 倾斜摄影 像控点 三维建模 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]