Normalization of Contrast in Document Images Using Generalized Fuzzy Operator with Least Square Method. - Chung-Chu Leung; Paul C. K. Kwok; Francis H. Y. Chan; W. K. Tsui (ICPR (3), 2002)

B-Spline Snakes in Two Stages. - Chung-Chu Leung; C. H. Chan; Francis H. Y. Chan; W. K. Tsui (ICPR (1), 2004)