515386.fig.004a
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515386.fig.004b
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515386.fig.004c
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515386.fig.004d
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515386.fig.004e
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Figure 4: Segmentation result of a nonsolid GGO pulmonary nodule. (a) Original CT image; (b) the segmentation result carried out by experts; (c) the segmentation result by region-based active contour model; (d) the segmentation result by integrated active contour model; and (e) the segmentation result by the proposed FIACM model.