A fast multiscale edge detection algorithm based on a new edge preserving PDE resolution scheme

In this communication we present a new explicit numerical scheme to approximate the solution of the linear diffusion filtering. It allows to introduce a new edge preserving scheme which is fast, stable, easy to program and applicable to any dimensions. Our diffusion scheme is then put into a simple and original multi-scale edge detection algorithm. Some experimental results of the proposed approach for the multi-scale detection of edges in grey scale images are presented, as well as a comparison with other diffusion filtering schemes.