1. School of Resources and Environmental Science; Wuhan University; Wuhan China
2. Collaborative Innovation Center of Geo Spatial Technology; Wuhan University; Wuhan China
3. The Key Laboratory of Geographical Information System, Ministry of Education; Wuhan University; Wuhan China
4. Department of Remote Sensing & GIS, Faculty of Geomatics; Sbaragamuwa University; Belihuloya Sri Lanka