无人机倾斜摄影测量高效绘制精确跨断层场地地形图  

Accurate Topographic Survey at a Cross-fault Site from Efficient UAV Oblique Photogrammetry

作　　者：王伟力[1] 唐伟[1] 滕俊豪 马伶俐[1] 王本帅 白云波 WANG Weili;TANG Wei;TENG Junhao;MA Lingli;WANG Benshuai;BAI Yunbo(Crustal Deformation Monitoring Center of Sichuan Earthquake Agency,Sichuan Yaan 625000;Sichuan Zhengwei Space Technology Limited company,Sichuan Chengdu 610046)

机构地区：[1]四川省地震局地壳形变观测中心,四川雅安6250002 [2]四川正维空间科技绘有限公司,四川成都610046

出　　处：《四川地震》2023年第4期24-28,共5页Earthquake Research in Sichuan

基　　金：四川省地震局地震科技专项(LY2222)资助.

摘　　要：选择大疆(M300 RTK)无人机进行野外免像控点的倾斜摄影,快速获取虾拉沱跨断层场地重要地物准确坐标以及正射影像、地形图,并以跨断层形变观测结果作为检验条件进行精度评价。结果表明:利用无人机倾斜摄影测量快速绘制精确的跨断层场地图是可行的;本次倾斜摄影测量减少了传统野外像控点施测,与传统航摄项目相比节省了时间、提高了工作效率;由摄影测量结果计算的测距边长和垂直精度均达到厘米级精度,符合大比例尺地形图绘制等规范要求。本研究为快速高效绘制跨断层场地地形图提了供解决方案。In this paper,we selected DJI(M300 RTK)UAV to carry out oblique photography without image control points in the field.To quickly obtain the accurate coordinates of important features,orthographic images,and topographic maps at the Xialatuo cross-fault site,we carried out the accuracy evaluation using the observational results of the cross-fault deformation as the test conditions.The results show that it is feasible to use UAV oblique photogrammetry to quickly draw accurate cross-fault field maps.This oblique photogrammetry could reduce the traditional field image control point measurement,and improve work efficiency compared with traditional aerial photography projects.The side length and vertical accuracy of the ranging calculated by the photogrammetry results reach centimeter-level accuracy,which meets the requirements of large-scale topographic map drawing and other specifications.This study provides a solution for quickly and efficiently drawing topographic maps of cross-fault sites.

关 键 词：倾斜摄影测量 跨断层 场地图 

分 类 号：P315.726.5[天文地球—地震学]