1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, China
2. Surveying and Mapping Geo-Informatics Technology Research Center on Plateau Mountains of Yunnan Higher Education, Kunming, China
3. Key Laboratory of Geospatial Information Integration Innovation for Smart Mines, Kunming, China
4. Spatial Information Integration Technology of Natural Resources, Universities of Yunnan Province, Kunming, China