Chien-Ching Chiu This email address is being protected from spambots. You need JavaScript enabled to view it.1, Chien-Hung Chen², Yu-Ting Cheng¹, Yu-Lin Lee¹ and Yu-Kai Chou¹

¹Department of Electrical Engineering, Tamkang University, Tamsui, Taiwan 251, R.O.C.
²Department of Digital Game and Animation Design, Taipei University of Marine Technology, Tamsui, Taiwan 251, R.O.C.

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