An optimal algorithm for detecting straight lines in chain codes. - Jianxing Yuan; Ching Y. Suen (ICPR (3), 1992)

Four directional adjacency graphs (FDAG) and their application in locating fields in forms. - Jianxing Yuan; Yuan Yan Tang; Ching Y. Suen (ICDAR, 1995)

An optimal O(n) algorithm for identifying line segments from a sequence of chain codes. - Jianxing Yuan; Ching Y. Suen (Pattern Recognit., 1995)