Comparative Study on the Surveying and Mapping Accuracy and Operation Efficiency of UAV in Non-Coal Open-Pit Mines with Large Height Difference
1.Hunan Vocational Institute of Technology, Xiangtan, Hunan 411104, China
2.Changsha Guangqi Survey Engineering Technology Co., Ltd., Changsha, Hunan 410114, China
3.Xiangxiang Dolomite Mine of Xiangtan Iron & Steel Group Co., Ltd., Xiangtan, Hunan 411423, China
4.Guangdong Ruidong Survey Foundation Engineering Co., Ltd., Dongguan, Guangdong 523000, China
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