On the incorporation of shape priors into geometric active contours

A novel model for boundary determination that incorporates prior shape information into geometric active contours is presented. The basic idea of this model is to minimize the energy functional depending on the information of the image gradient and the shape of interest, so that the boundary of the...

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Bibliographic Details
Main Authors: Yunmei Chen, Thiruvenkadam, S., Tagare, H.D., Feng Huang, Wilson, D., Geiser, E.A.
Format: Conference Proceeding
Language:English
Subjects:
Active contours
Biomedical imaging
Cardiology
Deformable models
Equations
Level set
Mathematics
Shape
Solid modeling
Ultrasonic imaging
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Summary:A novel model for boundary determination that incorporates prior shape information into geometric active contours is presented. The basic idea of this model is to minimize the energy functional depending on the information of the image gradient and the shape of interest, so that the boundary of the object can be captured either by higher magnitude of the image gradient or by the prior knowledge of its shape. The level set form of the proposed model is also provided. We present our experimental results on some synthetic images, functional MR brain images, and ultrasound images for which the existing active contour methods are not applicable. The existence of the solution to the proposed minimization problem is also discussed.
DOI:10.1109/VLSM.2001.938893