Biomedical Engineering Reference
In-Depth Information
(a)
(b)
(c)
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Figure 21.
Illustration of class uncertainty-induced snake: (a) phantom image generated
from segmented mask of brain with noise and inhomogeneity added; (b) segmentation using
class uncertainty-induced active contour [49]; (c-e) cropped region showing carotid artery
in MR images (courtesy Hospital of the University of Pennsylvania); (f-h) segmentation
of lumen (green) and outer vessel wall (red) using the class uncertainty based snake. See
attached CD for color version.
One of the major advantages of the level set approach is its adaptability to
topological changes. Traditional snakes, on the other hand, are restricted by their
