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

<div>Illustration of diagonal-based contour tracing. (a) Searching the start point along major and minor diagonal. (b) Rough contour after diagonal-based tracing.</div>

Computational and Mathematical Methods in Medicine

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Figure 4: Automatic Approach for Lung Segmentation with Juxta-Pleural Nodules from Thoracic CT Based on Contour Tracing and Correction 