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Model-based segmentation of medical imagery by matching distributions

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6 Author(s)
Freedman, D. ; Dept. of Comput. Sci., Rensselaer Polytech. Inst., Troy, NY, USA ; Radke, R.J. ; Tao Zhang ; Yongwon Jeong
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The segmentation of deformable objects from three-dimensional (3-D) images is an important and challenging problem, especially in the context of medical imagery. We present a new segmentation algorithm based on matching probability distributions of photometric variables that incorporates learned shape and appearance models for the objects of interest. The main innovation over similar approaches is that there is no need to compute a pixelwise correspondence between the model and the image. This allows for a fast, principled algorithm. We present promising results on difficult imagery for 3-D computed tomography images of the male pelvis for the purpose of image-guided radiotherapy of the prostate.

Published in:

Medical Imaging, IEEE Transactions on  (Volume:24 ,  Issue: 3 )

Date of Publication:

March 2005

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