Connected Line Drawing Extraction from a Perspective View of a Polyhedron. - W. K. Gu; Thomas S. Huang (IEEE Trans. Pattern Anal. Mach. Intell., 1985)

Matching Perspective Views of a Polyhedron Using Circuits. - W. K. Gu; J. Y. Yang; Thomas S. Huang (IEEE Trans. Pattern Anal. Mach. Intell., 1987)

A robust image processing approach used to ALV road following. - W. K. Gu; Hui Liu; Hui Wang (ICPR (1), 1992)