〇Toshiyuki Maeda¹, Masumi Yajima² (1. Hannan University, 2. Meikai University)

〇Takashi Ogata¹, Kazui Fukuda¹, Jumpei Ono^1,2, Takuya Ito¹ (1. Iwate Prefectural University, 2. Vocational School of Digital Arts Sendai)

〇Satoshi Kai¹, Yoshinobu Uchida¹, Abe Keiko², Kazutomo Ishi², Kiyoshi Shimoda², Tsuyoshi Niino² (1. Hitachi, Ltd. Research & Development Group, 2. Hitachi Document Solutions Co., Ltd.)

〇Ryo Aoyagi¹, Masahiro Miyata¹, Tetsuji Yamada¹, Tomoaki Nakamura², Takashi Omori¹ (1. Tamagawa University , 2. The University of Electro-Communications)

〇Jun Nakamura¹, Sanetake Nagayoshi² (1. Chuo University, 2. Shizuoka University)