Research Article

Contour Propagation Using Feature-Based Deformable Registration for Lung Cancer

Figure 5

Comparison between fully automatic segmented methods and the manual delineation. The cyan contours were manual delineated contours. (a) Flood fill algorithm (yellow); (b) active contour (red); (c) watershed algorithm (blue). The region embraced by the black ellipse failed to be delineated by these automatic segmentations.
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(a)
701514.fig.005b
(b)
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(c)