Lung segmentation is an indispensable step in pulmonary nodules computer-aided detection based CT images.Aimed at decreasing the Snake dependence on initial contour points, improving the accuracy of segmenting the depth sag area and resistance of noise, this paper proposes an interactive lung parenchyma segmentation algorithm, which uses improved Live-Wire algorithm to define Snake initial contour. It modifies the traditional Live-Wire algorithm by combining it with the threshold algorithm. After the pre-se...
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