'Active contour without edges', on parametric manifolds

Yi Gao; Allen Tannenbaum

doi:10.1117/12.841023

12 March 2010 'Active contour without edges', on parametric manifolds

Yi Gao, Allen Tannenbaum

Proceedings Volume 7623, Medical Imaging 2010: Image Processing; 76233P (2010) https://doi.org/10.1117/12.841023
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

Region based active contour model has been widely used in image segmentation on planar images. However while a photo picture or a medical image is defined on 2D or 3D Euclidean spaces, in many cases the information is defined on the curved surfaces, or more general manifolds. In this work we extend the region based active contour method to work on the parametric manifolds. Essentially, it was noticed that in some region based active contour segmentation methods, it were only the signs of the level set function values, instead of the value themselves, which contribute to the cost functional. Thus a binary state function is enough to represent the two phase segmentation. This gives an alternative view of the level set based optimization and it is especially useful when the image domain is curved because the signed distance function and its derivative are relative difficult to be evaluated in a curved space. Based on this, the segmentation on the curved space is proceed by consecutively changing the binary state function, to optimize the cost functional. Finally, the converged binary function gives the segmentation on the manifold. The method is stable and fast. We demonstrate the applications of this method, with the cost functional defined using the Chan-Vese model, in neuroimaging, fluid mechanics and geographic fields where the information is naturally defined on curved surfaces.

Citation Download Citation

Yi Gao and Allen Tannenbaum "'Active contour without edges', on parametric manifolds", Proc. SPIE 7623, Medical Imaging 2010: Image Processing, 76233P (12 March 2010); https://doi.org/10.1117/12.841023

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KEYWORDS

Image segmentation

Binary data

Blood vessels

Medical imaging

3D image processing

Mechanics

3D modeling

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