1. College of Economics and Management, China Three Gorges University, Yichang 443002, China; The Hubei Key Laboratory of Intelligent Vision Based Monitoring for Hydroelectric Engineering (China Three Gorges University), Yichang 443002, China
2. College of Economics and Management, China Three Gorges University, Yichang 443002, China; School of Computer Science, Northwestern Polytechnical University, Xi'an 710000, China; The Hubei Key Laboratory of Intelligent Vision Based Monitoring for Hydroelectric Engineering (China Three Gorges University), Yichang 443002, China
3. School of Cyber Science and Engineering, Wuhan University, Wuhan 430072, China
4. College of Computer and Information Technology, China Three Gorges University, Yichang 443002, China; The Hubei Key Laboratory of Intelligent Vision Based Monitoring for Hydroelectric Engineering (China Three Gorges University), Yichang 443002, China