1. School of Science and Technology, University of Trás-Os-Montes E Alto Douro, Vila Real, Portugal
2. Centre for Robotics in Industry and Intelligent Systems (CRIIS), INESC Technology and Science, Porto, Portugal
3. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
4. International Research Center of Big Data for Sustainable Development Goals, Beijing, China
5. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
6. Application system Department I, China Siwei Surveying and Mapping Technology Co. Ltd, Beijing, China
7. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing, China
8. College of Marine Science and Engineering, Nanjing Normal University, Nanjing, China
9. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
10. Institute for Earth Observation, Eurac Research, Bolzano, Italy
11. Faculty of Engineering, University of Porto, Porto, Portugal