Many Is Better Than One: An Integration of Multiple Simple Strategies for Accurate Lung Segmentation in CT Images

Table 5

Working times of different methods.

Methods	Average running time (seconds)
Threshold	0.28
Region growing	0.38
Active contour	0.54
Random walk	0.58
Active contour with curvature correction	0.64
Method in [11]	2.58
Method in [5]	3
Proposed method	1.68