Fig. 6.

(Color online) Spatial distributions of Corpus Callosum, Cingulum and Fornix bundles from three single slices overlaid on their corresponding FA images. These maps are constructed using three different methods. (a) High-dimensional atlas, (b) consistency clustering without tract cuts, (c) consistency clustering with tract cuts. The colorbars indicate the probability of each voxel in the spatial distribution of the corresponding fiber bundle. Note that the probabilities become higher in the central regions of the bundles and the number of sporadical voxels with non-zero probabilities decrease from left to right, indicating a sharper atlas through better registration and more consistent labeling of the subjects. This observation is quantified through these distributions’ entropies in Table 1