On Using Longuet-Higgins Equation in Pose Estimation Framework by Lowe. - Siu-Hang Or; Kam-sum Lee; Kin-hong Wong; Tze-kin Lao; Tien-Tsin Wong; Yiu-fai Fung (IC-AI, 1999)

3D Face Modeling from Perspective-Views and Contour-Based Generic-Model. - Kam-sum Lee; Kin-hong Wong; Siu-Hang Or; Yiu-fai Fung (Real Time Imaging, 2001)