Abstract This paper proposes a probabilistic prior-based active contour model for segmenting human brain MR images. Our model is formulated with the maximum a posterior (MAP) principle and implemented under the level set framework. Probabilistic atlas for the structure of interest, e.g., cortical gray matter or caudate nucleus, can be seamlessly integrate into the level set evolution procedure to provide crucial guidance in accurately capturing the target. Unlike other region-based active contour models, our solution uses locally varying Gaussians to account for intensity inhomogeneity and local variations existing in many MR images are better handled. Experiments conducted on whole brain as well as caudate segmentation demonstrate the improvement made by our model.
A Local Probabilistic Prior-Based Active Contour Model for Brain MR Image Segmentation
Computer Vision – ACCV 2007 ; 21 ; 956-964
Lecture Notes in Computer Science ; 4843 , 21
2007-01-01
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Active Contour , Active Contour Model , Intensity Inhomogeneity , Gradient Vector Flow , Probabilistic Atlas Computer Science , Image Processing and Computer Vision , Computer Imaging, Vision, Pattern Recognition and Graphics , Pattern Recognition , Artificial Intelligence (incl. Robotics) , Biometrics , Algorithm Analysis and Problem Complexity
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