Difference between revisions of "2008 Winter Project Week:Resampling DTIs with Slicer3"

From NAMIC Wiki
Jump to: navigation, search
Line 29: Line 29:
 
<h1>Progress</h1>
 
<h1>Progress</h1>
  
The module is available in Slicer3 TransformIO branch. It currently supports:
+
====Jan 2008 Project Week====
*Several blockwise diffusion tensor interpolations
+
 
**Nearest Neighborhood
+
The project week allowed to integrate the module into Slicer. It is now available in Slicer3 TransformIO branch. The support of the non-rigid transforms has been added. The list of the currently supported transforms is the following:
**Linear
+
*Rigid3D
**BSpline
+
*Affine - Finite Strain
*The following transforms
+
*Affine - Preservation of Principal Direction
**Rigid3D
+
*Non-rigid transforms (not tested yet)
**Affine - Finite Strain
+
 
**Affine - Preservation of Principal Direction
+
Several blockwise diffusion tensor interpolations are also available:
**non-rigid transforms (not tested yet)
+
*Nearest Neighborhood
To implement:
+
*Linear
* new interpolations ( using the separation of the shape and the orientation of the tensors)
+
*BSpline
 +
 
 +
The next step is to implement new interpolations (ie separating the shape and the orientation of the tensors).
  
 
</div>
 
</div>

Revision as of 22:18, 14 February 2008

Home < 2008 Winter Project Week:Resampling DTIs with Slicer3
Tensor Phantom
Tensor Phantom after scaling transformation


Key Investigators

  • BWH: Francois Budin, Sylvain Bouix
  • GE: Xiaodong Tao

Objective

The goal of this project is to develop a command line module for slicer 3 to resample DT images. This module is compatible with several ITK 3D transforms (rigid, affine and non-rigid). These transforms can be pass as an ITKTransformFile using the command line, or directly as a transform in Slicer3. It also allows change the spacing, the orientation, the size or the origin of the image. This module implements different diffusion tensor interpolations and the structure of the program makes it easy to add new interpolations or new transformations.

Approach, Plan

Our approach is to build the ITK infrastructure (ITK diffusion tensor interpolators and ITK diffusion tensor transforms) to support this module. Our main purpose at the Project Week is to implement a non-rigid transform for diffusion tensor images.

Progress

Jan 2008 Project Week

The project week allowed to integrate the module into Slicer. It is now available in Slicer3 TransformIO branch. The support of the non-rigid transforms has been added. The list of the currently supported transforms is the following:

  • Rigid3D
  • Affine - Finite Strain
  • Affine - Preservation of Principal Direction
  • Non-rigid transforms (not tested yet)

Several blockwise diffusion tensor interpolations are also available:

  • Nearest Neighborhood
  • Linear
  • BSpline

The next step is to implement new interpolations (ie separating the shape and the orientation of the tensors).



References

  • D.C. Alexander, C. Pierpaoli, P.J. Basser, J.C. Gee. Spatial Transformations of Diffusion Tensor Magnetic Resonance Images, IEEE Transactions on medical imaging, vol. 20, No. 11, November 2001