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This work investigates the capability of supervised classification methods in detecting both major tissues and subcortical structures using multispectral brain magnetic resonance images. First, by means of a realistic digital brain phantom, we investigated the classification performance of various Discriminant Analysis methods, K-Nearest Neighbor and Support Vector Machine. Then, using phantom and real data, we quantitatively assessed the benefits of integrating anatomical information in the classification, in the form of voxels coordinates as additional features to the intensities or tissue probabilistic atlases as priors. In addition we tested the effect of spatial correlations between neighboring voxels and image denoising. For each brain tissue we measured the classification performance in terms of global agreement percentage, false positive and false negative rates and kappa coefficient. The effectiveness of …
Publication date: 
1 Jul 2014

Loredana Murino, Donatella Granata, Maria Francesca Carfora, S Easter Selvan, Bruno Alfano, Umberto Amato, Michele Larobina

Biblio References: 
Volume: 38 Issue: 5 Pages: 337-347
Computerized medical imaging and graphics