Difference between revisions of "2009 Winter Project Week Transform Management"
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* Linear transformations are always stored in Slicer as modeling transformations. | * Linear transformations are always stored in Slicer as modeling transformations. | ||
− | * Slicer assumes that | + | * Slicer assumes that plugins using ITK Transform file format want/return resampling transforms |
* Initial prototype of itkDisplacementFieldTransform using ITK Transform file format by Base64 encoding a Zipped version of a vector field (ITK Transform format is ASCII). | * Initial prototype of itkDisplacementFieldTransform using ITK Transform file format by Base64 encoding a Zipped version of a vector field (ITK Transform format is ASCII). | ||
* Mike Halle has a coordinate frame manager written in Python | * Mike Halle has a coordinate frame manager written in Python |
Latest revision as of 16:09, 8 December 2008
Home < 2009 Winter Project Week Transform Management![]() Return to Project Week Main Page |
Key Investigators
- Jim Miller, GE
- Steve Pieper, Isomics, Inc.
Objective
Provide the infrastructure to handle non-linear transformations as both modeling and resampling transforms.
Approach, Plan
We will continue the plans from the Summer 2008 project event (here).
- Add attribute to transform nodes to indicate whether they represent a "Transform to World/Parent" or "Transform from World/Parent"
- Extend visualization system for "Transform to World/Parent" or "Transform from World/Parent" _
- Extend command line modules to annotate a transformation as a "Transform to World/Parent" or "Transform from World/Parent"
- Identify places in slicer3 code where linear transforms are assumed - these either need generalization or informative warning/error messages
- Incorporate itkDisplacementFieldTransform/vtkGridTransform for vector field style transformations.
- Need to extend itk::TransformIO. Prototype using Base64/Zipped vector fields. Alternative, allow binary data in ITK Transform files or reference an external image to hold vectors in file format.
- Coordinate frame manager to map between any two data sets verses mapping to parent/world.
Progress
- Linear transformations are always stored in Slicer as modeling transformations.
- Slicer assumes that plugins using ITK Transform file format want/return resampling transforms
- Initial prototype of itkDisplacementFieldTransform using ITK Transform file format by Base64 encoding a Zipped version of a vector field (ITK Transform format is ASCII).
- Mike Halle has a coordinate frame manager written in Python