3CANNY J.A Computational approach to edge detection[J].Pattern Analysis and Machine Intelligence,1986,8(1):679-697. 被引量:1
4OSHER S,SETHIAN J A.Fronts propagating with curvature dependent speed:Lalgorithms based on Hamilton-jacobi formulations[J].Journal of computation Physics,1988,79:12 -491. 被引量:1