This is an example of the fiber bundles obtained from an in vivo data set. The tractography was seeded in the right Thalamus in the brain. a The result of the tractography. The simpler model is displayed in blue and the new model in red. Close-ups of the marked area are shown in (b) and (c). b Close-up of the simpler model of the marked region. c Close-up of the full model of the marked region.