1. Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Geo-Information Engineering in Surveying, Mapping, and Remote Sensing, Xiangtan, China
2. East China Normal University, School of Geographic Sciences, Key Lab of Geographic Information Science of the Ministry of Education, Shanghai, China
3. Hunan University of Science and Technology, School of Earth Sciences and Geospatial Information Engineering, Xiangtan, China
4. Anhui Normal University, School of Geography and Tourism, Wuhu, China