1. NAGOYA UNIVERSITY, Graduate School of Environmental Studies(Furo-cho, Chikusa-ku, Nagoya-shi, Aichi 464-8601, Japan)
2. KEYENCE CORPORATION, Imageing Systems Division(2-3-1, Daiba, Minato-ku, Tokyo 132-0091, Japan)
3. THE UNIVERSITY OF TOKYO, Graduate School of Engineering(7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan)