Back and Forward Moving Scheme of Front Wheel Raising for Inverse Pendulum Control Wheel Chair Robot. - Yoshihiko Takahashi; Tsuyoshi Takagaki; Jun Kishi; Yohei Ishii (ICRA, 2001)

Detection of attention behavior for marketing information system. - Yohei Ishii; Hitoshi Hongo; Makoto Kanagawa; Yoshinori Niwa; Kazuhiko Yamamoto (ICARCV, 2002)

Real-Time Face and Head Detection using Four Directional Features. - Yohei Ishii; Hitoshi Hongo; Kazuhiko Yamamoto; Yoshinori Niwa (FGR, 2004)

Face and Head Detection for a Real-Time Surveillance System. - Yohei Ishii; Hitoshi Hongo; Kazuhiko Yamamoto; Yoshinori Niwa (ICPR (3), 2004)

Precise Top View Image Generation without Global Metric Information. - Hiroshi Kano; Keisuke Asari; Yohei Ishii; Hitoshi Hongo (IEICE Trans. Inf. Syst., 2008)