fMRI Support to InVesalius

Currently InVesalius does not support simultaneous visualization of structural MRI and fMRI volumes. This is however of large interest to visualize both modalities for people involved in the clinical and analytical domain. Indeed a direct implication would be to have functional connectivity induced graphs visible along with structural connections (white matter). On top of which, after generating 3d maps, it may then be possible to visualize in space the functional connections versus structural connections. First of all, this project would be a useful feature to InVesalius, but secondly also to the neuroscience community. By having InVesalius open source and in a UI format it would enable clinical experts or neuroscientists without engineering background to have ready to go visualization of fMRI and structural MRI volumes. In general this could be extended to other modalities as well. Two possible ways to simultaneously visualize structural MRI and fMRI are: 1. Overlay different masks or contrasts (need to be carefully picked) for each of the two modality. There might be a need to apply some color distribution matching between structural and functional (e.g histogram equalization) since one would be T1 and the other T2 to have better visualization. Both slices would need to be co-registered prior to overlaying. The effect on the generation of 3D visualization would also be cared for. 2. Having two views or preview of fMRI in each orientation (sagittal, coronal, axial and 3d). Two views or one main view and a preview would require to have a tracker (dot) that points to the same voxels in the two views. This could be a way for the user to match regions for instance and essentially avoid crowding the visualization. The language I plan on using and believe fits the project would be python. The potential libraries used during the project would include already required ones for InVesalius (e.g scipy,opencv)