In this paper a new method for segmenting medical images is presented, the multiresolution diffused expectation-maximization (MDEM) algorithm. The algorithm operates within a multiscale framework, thus taking advantage of the fact that objects/regions to be segmented usually reside at different scales. At each scale segmentation is carried out via the expectation-maximization algorithm, coupled with anisotropic diffusion on classes, in order to account for the spatial dependencies among pixels. This new approach is validated via experiments on a variety of medical images and its performance is compared with more standard methods. (c) 2005 Elsevier Ltd. All rights reserved.

A multiresolution diffused expectation-maximization algorithm for medical image segmentation

FERRARO, Mario
2007-01-01

Abstract

In this paper a new method for segmenting medical images is presented, the multiresolution diffused expectation-maximization (MDEM) algorithm. The algorithm operates within a multiscale framework, thus taking advantage of the fact that objects/regions to be segmented usually reside at different scales. At each scale segmentation is carried out via the expectation-maximization algorithm, coupled with anisotropic diffusion on classes, in order to account for the spatial dependencies among pixels. This new approach is validated via experiments on a variety of medical images and its performance is compared with more standard methods. (c) 2005 Elsevier Ltd. All rights reserved.
2007
37
83
96
G. Boccignone; P. Napoletano; V. Caggiano; M. Ferraro
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/53132
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