ISVC '08 Proceedings of the 4th International Symposium on Advances in Visual Computing, Part II
A Variational Level Set Method for Multiple Object Detection
ISVC '08 Proceedings of the 4th International Symposium on Advances in Visual Computing, Part II
A Statistical Overlap Prior for Variational Image Segmentation
International Journal of Computer Vision
Level Set Image Segmentation with a Statistical Overlap Constraint
IPMI '09 Proceedings of the 21st International Conference on Information Processing in Medical Imaging
Embedding a region merging prior in level set vector-valued image segmentation
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part I
Effective level set image segmentation with a kernel induced data term
IEEE Transactions on Image Processing
Information Sciences: an International Journal
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Studies have shown that the Weibull distribution can model accurately a wide variety of images. Its parameters index a family of distributions which includes the exponential and approximations of the Gaussian and the Raleigh models widely used in image segmentation. This study investigates the Weibull distribution in unsupervised image segmentation and classification by a variational method. The data term of the segmentation functional measures the conformity of the image intensity in each region to a Weibull distribution whose parameters are determined jointly with the segmentation. Minimization of the functional is implemented by active curves via level sets and consists of iterations of two consecutive steps: curve evolution via Euler-Lagrange descent equations and evaluation of the Weibull distribution parameters. Experiments with synthetic and real images are described which verify the validity of method and its implementation