Self-calibration and mirror center offset elimination of a multi-beam laser tracking system. - Hanqi Zhuang; Baiyuan Li; Zvi S. Roth; Xangdong Xie (Robotics Auton. Syst., 1992)

Corner detection by a cost minimization approach. - Xangdong Xie; Raghavan Sudhakar; Hanqi Zhuang (Pattern Recognit., 1993)

On improving eye feature extraction using deformable templates. - Xangdong Xie; Raghavan Sudhakar; Hanqi Zhuang (Pattern Recognit., 1994)

Real-time eye feature tracking from a video image sequence using Kalman filter. - Xangdong Xie; Raghavan Sudhakar; Hanqi Zhuang (IEEE Trans. Syst. Man Cybern., 1995)

A cascaded scheme for eye tracking and head movement compensation. - Xangdong Xie; Raghavan Sudhakar; Hanqi Zhuang (IEEE Trans. Syst. Man Cybern. Part A, 1998)