ROBUST SNAKE IMPLEMENTATION - A DUAL ACTIVE CONTOUR

A conventional active contour formulation suffers difficulty in approp riate choice of an initial contour and values of parameters. Recent ap proaches have aimed to resolve these problems but can compromise other performance aspects. To relieve the problem in initialization, we use a dual active contour, which is combined with a local shape model to improve the parameterization. One contour expands from inside the targ et feature, the other contracts from the outside. The two contours are interlinked to provide a balanced technique with an ability to reject ''weak'' local energy minima.