1. School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454003, China
2. MNR Key Laboratory of Mine Spatio-Temporal Information and Ecological Restoration, Henan Polytechnic University, Jiaozuo 454003, China
3. Henan Provincial Academy of Natural Resources Science, Key Laboratory of Dynamic Monitoring of Land Resources in Henan Province, Zhengzhou 450053, China
4. Henan Provincial Remote Sensing Center of Aerial Physical Exploration, Institute of Remote Sensing Technology, Zhengzhou 450053, China