基于系留无人机的应急测绘技术应用  | 
	
| 王永全, 李清泉, 汪驰升, 朱家松, 王新雨 | 
| 
			 Tethered UAVs-based applications in emergency surveying and mapping  | 
	
| Yongquan WANG, Qingquan LI, Chisheng WANG, Jiasong ZHU, Xinyu WANG | 
| 图3 2019年深圳大学军训系留无人机人群识别检测 | 
	
| Fig.3 Crowd identification in Shenzhen University military training in 2019 | 
	
			 
		 |