王素玉:To whom correspondence should be addressed. E-mail: suyuwang@emails.bjut.edu.cn. Wang Suyu, bom in 1976. She received the B.S. and M.S. degrees in Electronic Engineering from Hebei University and Sichuan University in 1999 and 2002, respectively. She is now a Ph. D candidate of Signal & Information Processing Lab, Beijing University of Technology. Her research interests include video and image processing, super resolution image reconstruction, key technologies of visual surveillance.