WEI-LONG CHEN1,2,3, XIAO-HAI HE1,+, HAI-YING SONG1 AND WEI WU1
1School of Electronics and Information Engineering
Sichuan University
Sichuan, 610064 P.R. China
+E-mail: nic5602@scu.edu.cn
2Digital Media Department
Sichuan Normal University
Sichuan, 610068 P.R. China
3Visual Computing and Virtual Reality Key Laboratory of Sichuan Province
Sichuan, 610068 P.R. China