*Atsushi Kanno¹, Rena Takaoka², Shintaro Ohtani^1,2, Hideyuki Sotobayashi², Naokatsu Yamamoto¹ (1. National Institute of Information and Communications Technology, 2. Aoyama Gakuin University)

*Yukiko Horikawa¹, Takahiro Miyashita¹, Norihiro Hagita¹ (1. ATR Intelligent Robotics and Communication Laboratories)

*Tetsuya Ogata¹, Toshimitsu Kawano² (1. Waseda University, 2. Beckhoff Automation K.K.)