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Registration-Based Morphing of Active Contours for Segmentation of CT Scans

1. Center for Turbulence Research, Stanford University, Stanford, CA 94305
2. Department of Mathematics, Stanford University, Stanford, CA 94305-2125

We present a new algorithm for segmenting organs in CT scans for radiotherapy treatment planning. Given a contour of an organ that is segmented in one image, our algorithm proceeds to segment contours that identify the same organ in the consecutive images. Our technique combines partial differential equations-based morphing active contours with algorithms for joint segmentation and registration. The coupling between these different techniques is done in order to deal with the complexity of segmenting ''real'' images, where boundaries are not always well defined, and the initial contour is not an isophote of the image.
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Keywords CT scans; registration; morphing; segmentation; active contours.

Citation: Yuan-Nan Young, Doron Levy. Registration-Based Morphing of Active Contours for Segmentation of CT Scans. Mathematical Biosciences and Engineering, 2005, 2(1): 79-96. doi: 10.3934/mbe.2005.2.79


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Copyright Info: 2005, Yuan-Nan Young, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

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