Figure 11From: Lesion detection in demoscopy images with novel density-based and active contour approachesLeading points (in blue region) can change the shape of a simple cluster, which have no hole in it. The idea of BD-DBSCAN lies in firing regions queries for those points that are in the blue regions. At a given time, the points in the red regions have no effect in altering boundary of the cluster.Back to article page