Fig. 13From: Segmentation of pulmonary nodules using adaptive local region energy with probability density function-based similarity distance and multi-features clusteringSegmentation results of the GGO pulmonary nodule. a original CT image; b local zooming of Fig. 13a; c the delineation result by an experienced radiologist; d the segmentation result by region-based active contour model; e the segmentation result by traditional integrated active contour model; f the segmentation result by the proposed segmentation methodBack to article page