1. Institute of Computer and Communication Engineering, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.
2. Department of Psychology, National Cheng Kung University, Tainan, Taiwan, R.O.C.
3. Department of Computer Science and Entertainment Technology, Tajen university, Pingtung, Taiwan, R.O.C.
4. Department of Computer Science and Information Engineering, National Ilan University, Yilan, Taiwan, R.O.C.