TubeTK/Events/2010.10.26
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Revision as of 05:03, 26 October 2010 by Danielle.pace (talk | contribs)
Danielle
- Computed weighting term between anisotropic and diffusive regularization = exponential decay as a function of distance to the closest polydata point
- Registration works!
Sliding organ registration
- Sliding tubes:
- Section of top tube moves 4 pixels to the right, section of bottom tube moves 4 pixels to the left
Original fixed image:
Original moving image:
Organ borders:
Border normals:
Motion field, no regularization:
Transformed moving image:
Motion field, diffusive regularization:
Transformed moving image:
Motion field, anisotropic diffusive regularization:
Transformed moving image:
- Sliding blocks:
- Top block moves 6 pixels to the right, bottom block moves 6 pixels to the left
Original fixed image:
Original moving image:
Organ borders:
Border normals:
Motion field, no regularization:
Transformed moving image:
Motion field, diffusive regularization:
Transformed moving image:
Motion field, anisotropic diffusive regularization:
Transformed moving image:
- Problem: corners within the fixed image do not have motion vectors, leading to problems in the transformed moving image
- Why? --> Because surface normals are discontinuous at corners...
+ Writing paper, due Thursday
Questions
- Better way to find distance from a point to a polydata?
