Fixing Common Topological Defects
Motivation
Why do we need to fix topological defects?
- Non-unique mapping to sphere
Why do topological defects occur?
- Segmentation errors
- Fill errors
Manual
- Holes
- WM classified as non-WM
- Fix by filling
- Example: filling ventricle
- Handles
- non-WM classified as WM
- Fix by cutting
- Example: removing optic nerve
- (Other areas: fornix, basal ganglia, temporal strands)