TubeTK/Design Discussions

Pre-processing

• Continuous switching anistropic diffusion
• Vessel enhancement filtering (multi-scale) by Frangi

Object segmentation

• Pixel
  • Intensity, multivariate intensity
• Atlas-based
  • Register and refine contours
• Region growing / active contours
  • Level sets, connected component, ...
  • What methods are in Slicer?

Tube extraction

Categories

1. Pixel-based
   • intensity, gradient magnitude, dot product of gradient and the eigenvectors of the hessian, ratios of eigenvalues of the hessian, ...
2. Region growing / level-set
   • Geodesics
   • Connected components
   • Active contours
3. Tracking / cross-sectional geometry
   • Intensity ridge
   • Probability ridge
   • Match filter
4. Atlas / fitting techniques
   • VMTK (given endpoints, find lowest-cost path), linear programming,

Papers

• "A VTK-based, CUDA-optimized Non-Parametric Vessel Detection Method"
  • http://www.midasjournal.org/browse/publication/710

Data structures

• itkTubeSpatialObject

Topology

• Aylward, MICCAI 2005

Editing

• Bullitt, IPMI 1997