Diffuse edge tracing using a predictor-corrector procedure with adaptive scope. - Anthony L. Shipman; Robert R. Bitmead; Gregory H. Allen (ICASSP, 1982)

Diffuse Edge Fitting and Following: A Location-Adaptive Approach. - Anthony L. Shipman; Robert R. Bitmead; Gregory H. Allen (IEEE Trans. Pattern Anal. Mach. Intell., 1984)