A novel Active Contour Modelalgorithm forcontour detection incomplex objects

AnewActive Contour Model(ACM)algorithm for monitoring (2), facial feature extraction (3)or,asinour thedetection ofthecontour ofbi-dimensional regions ispre- case, inmedical imageanalysis foranatomical contour sented. Thealgorithm isbased onthesimulation ofanelasticselection (4). bandglued tothecontour oftheregion under analysis. As Ifoneisinterested infinding thesmallest convexcon- aresult alocal convex hull isobtained, wheretheradius of g . * r ~~tour containing agiven region, theconvex hull (CH)al- theconcave regions included bytheelastic bandisdefined by