Direct Computation of Differential Invariants of Image Contours from Shading. - Liangyin Yu; Charles R. Dyer (ICIP (1), 1998)

Observer motion estimation and control from optical flow. - Liangyin Yu; Charles R. Dyer (ICIP (2), 2001)

Perception-Based 2D Shape Modeling by Curvature Shaping. - Liangyin Yu; Charles R. Dyer (IWVF, 2001)