Clustering Algorithms
An Extensible MRI Simulator for Post-Processing Evaluation
VBC '96 Proceedings of the 4th International Conference on Visualization in Biomedical Computing
Partial-Volume Bayesian Classification of Material Mixtures in MR Volume Data using Voxel Histograms
Partial-Volume Bayesian Classification of Material Mixtures in MR Volume Data using Voxel Histograms
Regional whole body fat quantification in mice
IPMI'05 Proceedings of the 19th international conference on Information Processing in Medical Imaging
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A mixture model clustering algorithm is presented for robust MRI brain image segmentation in the presence of partial volume averaging. The method uses additional classes to represent partial volume voxels of mixed tissue type in the data with their probability distributions modeled accordingly. The image model also allows for tissue-dependent variance values and voxel neighborhood information is taken into account in the clustering formulation. The final result is the estimated fractional amount of each tissue type present within a voxel in addition to the label assigned to the voxel. A multi-threaded implementation of the method is evaluated using both synthetic and real MRI data.