Slicer3:Volume Rendering

next Tasks

• Add a vtkSlicerNodeWidget to prototype
• Have a closer look at vtkSlicerViewerWidget
• MRML Scene

Goals

Volume rendering presets :

• MIP (Maximum Intensity Projection)
  • Wikipedia
  • vtkVolumeRayCastMIPFunction Class Reference
• CT Bone and vessel
  • Use histogram and tresholds, find possibilities to avoid outliers
• T1 MR Air/skin interface
• Label map per-label object rendering
  • Possible starting points for this task: vtkMRMLVolumeNode
    • vtkMRMLVolumeNode
    • vtkImageMapToRGBA

Slicer3 module interface:

• Select from loaded volumes
• Specify preset transfer functions or use KWWidgets tools

Slicer3 internals:

• Correct coordinates including transforms
• Level of detail rendering
• Proper integration with surface rendering

Different Volume Rendering Algorithms

• RayCast
• 2D Texture Mapping
• 3D Texture Mapping
• ...

Wish List

• 2D Transfer functions - may require specialized opengl code integrated with VTK. Talk with Gordon about latest work from Utah.

• use glTexSubImage3D so that incremental changes to the volume can be quickly reflected