An algorithm for an eye tracking system with self-calibration. - Takeshi Takegami; Toshiyuki Gotoh; Ghen Ohyama (Syst. Comput. Jpn., 2002)

A Hough Based Eye Direction Detection Algorithm without On-site Calibration. - Takeshi Takegami; Toshiyuki Gotoh; Seiichiro Kagei; Reiko Tachino (DICTA, 2003)

An algorithm for model-based stable pupil detection for eye tracking system. - Takeshi Takegami; Toshiyuki Gotoh; Ghen Ohyama (Syst. Comput. Jpn., 2004)