hua, Wang
junfeng, Zhang
fubao, Zhu
weiwei, Zhang
Funding for this research was provided by:
Open Research Fund Program of Key Laboratory of Digital Mapping and Land Information Application Engineering,NASG (GCWD201404)
Open Research Fund Program of Henan Province Engineering Laboratory of Information Technology of Emergency Platform (YJ2013003)
the doctoral foundation from Zhengzhou University of light industry
National Natural Science Foundation of China (61403349)