1. State Key Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
2. Department of Informatics and Computing, Solomon Mahlangu College of Science and Education, Sokoine University of Agriculture, Morogoro, Tanzania
3. Department of Earth Observation Science, Faculty ITC, University Twente, Enschede, Netherlands
4. Department of Town and Regional Planning, University of Johannesburg, Doornfontein, South Africa
5. Department of Geography & Environmental Management, University of Abuja, Abuja, Nigeria