1. School of Geography Science and Geomatics, Suzhou University of Science and Technology, Suzhou, China
2. School of Geographic Information and Tourism, Chuzhou University, Chuzhou, China
3. School of Resource and Environmental Sciences, Wuhan University, Wuhan, China
4. The Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
5. Key Laboratory of Network Information System Technology (NIST), Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
6. School of Computer Engineering, Nanjing Institute of Technology, Nanjing, China
7. East China Academy of Inventory and Planning of National Forestry and Grassland Administration, Hangzhou, China