Critical points on a perfectly 8- or 6-connected thin binary line. - S. H. Y. Hung; Tony Kasvand (Pattern Recognit., 1983)

On the Straightness of Digital Arcs. - S. H. Y. Hung (IEEE Trans. Pattern Anal. Mach. Intell., 1985)

A Practical Approach of 3-D Object Recognition in Range Data. - S. H. Y. Hung (IEA/AIE (Vol. 2), 1988)