Multi-edge detection by isotropical 2-D ISEF cascade

摘要

Most research in edge detection has been based on the classical mono-edge model. In the present paper, we propose an optimal edge detector for complicated noisy multi-edge images and the isotropical 2-D realization of the optimal filter. We introduce at first the complicated multi-edge model and show that the optimal filter as a preparation for multi edge detection, is a cascade of Infinite size Symmetrical Exponential Filters (ISEF). We then propose a fast realization of the isotropical 2-D optimal filter. Experimental results are also presented.