Fig. 5From: Segmentation of pulmonary nodules using adaptive local region energy with probability density function-based similarity distance and multi-features clusteringThe phantom nodules. a The appearance of the phantom; b interior of the phantom; c nodule models in the phantom (5 mm in diameter, from −406 to −477 HU); d the corresponding CT image (lung from −618 to −726 HU)Back to article page