Automatic Approach for Lung Segmentation with Juxta-Pleural Nodules from Thoracic CT Based on Contour Tracing and Correction

<div>Illustration of border marching algorithm. (a) Start point. (b) Reference direction. (c) New point is found on the right of the reference direction. (d) New reference direction.</div>

Computational and Mathematical Methods in Medicine

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Figure 7

Figure 7: Automatic Approach for Lung Segmentation with Juxta-Pleural Nodules from Thoracic CT Based on Contour Tracing and Correction 