Adhesion Pulmonary Nodules Detection Based on Dot-Filter and Extracting Centerline Algorithm

Figure 3

Models of vessels constructed. The regions marked by red in (a), (d), and (g) are dot-like regions, which will be enhanced by dot-filter. (a) the vessel of single line type; (b) smoothed by Gauss function; (c) enhanced by dot-filter; (d) the vessel of type; (e) smoothed by Gauss function; (f) enhanced by dot-filter; (g) the vessel of type; (h) smoothed by Gauss function; (i) enhanced by dot-filter.

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