Xiao Zhou
Department of Tourism, Leshan Vocational and Technical College, Leshan, China
Shaomei Li
Geospatial Information Institute, Zhengzhou Institute of Surveying and Mapping, Zhengzhou, China
Shuai Yang
Department of Tourism, Leshan Vocational and Technical College, Leshan, China
Wenying Zhou
Department of Tourism, Leshan Vocational and Technical College, Leshan, China
Bin Sun
Information Engineering Institute, Zhengzhou University of Industrial Technology, Zhengzhou, China
Yuping Wang
Information Engineering Institute, Zhengzhou University of Science and Technology, Zhengzhou, China
Yan Zhu
Department of Basic Courses, Zhengzhou Institute of Surveying and Mapping, Zhengzhou, China