A Survey on Brain Fiber Visualization

Brain fibers constitute the foundation for the brain complex structure and the information exchange among the brain regions.The fiber anatomical structures reconstruction based on diffusion tensor imaging and tractography techniques is rewarding to surgical navigation of brain tumors,neurological diseases diagnosis and description for the brain neural network connection graph.The brain fiber visualization technique aims to represent the one voxel fiber orientation and global distribution more accurately,and quantitatively analyze the uncertainties in fiber bundles,moreover,reduce visual clutter with improving the spatial perception so that the auxiliary analysis tool can be supported for clinical diagnosis.This paper briefly introduces the reconstruction process of brain fiber bundles.Meanwhile,the current mainstream fiber representation and rendering methods are reviewed and summarized from the perspective of fibers visual exploration,and the development of brain fiber uncertainty visualization is discussed according to model estimation and fiber tracking with fiber bundles analysis.Finally,we propose the further research directions.