Variation of ISEF edge detector

A new algorithm for the recursive infinite symmetric exponential filter (ISEF) edge detector is presented. The proposed algorithm is a cascade of ISEF and a 2/spl times/2 gradient mask, which will outperform the ISEF (Shen-Castan) edge detector in noise robustness. Experimental evaluations indicate a remarkable improvement in locating edges in very noisy images.

[1]  Jim R. Parker,et al.  Algorithms for image processing and computer vision , 1996 .

[2]  Stephen M. Smith,et al.  SUSAN—A New Approach to Low Level Image Processing , 1997, International Journal of Computer Vision.

[3]  Jun Shen,et al.  An optimal linear operator for step edge detection , 1992, CVGIP Graph. Model. Image Process..

[4]  Margaret M. Fleck.  Some Defects in Finite-Difference Edge Finders , 1992, IEEE Trans. Pattern Anal. Mach. Intell..