SimITK/SimVTK:
Model Driven Engineering for
Medical Imaging
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Simulink, Model Driven
Engineering (MDE) in Matlab
Interactive graphical environment
Select, add blocks to blank “canvas”,
inter-connect blocks to form a
process model
Written programming code
abstracted away
• Replaced by equivalent visual
model representation
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SimITK/SimVTK,
MDE for ITK & VTK
MDE for ITK/VTK:
• Drag and drop approach to process development
• Accessible visual notation for ITK and VTK
• Instructional value
MATLAB/Simulink offer many benefits:
• Use MATLAB’s Simulink visual environment
• Avoid reinventing the wheel
• Allow mix of MATLAB code and ITK/VTK
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SimVTK Example
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SimITK Example
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System Overview
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Templating
Virtual Block
Template File
S-Function
Template File
Simplified
XML
Automatic Template Substitution by Perl Scripts
Matlab .mex
File
Matlab
Callback FIle
Simulink
LIbrary
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Virtual Block
Input
Conversion
Spacing & Origin
itkImage
VirtualPort
Data
Conversion
Parameters
Update ITK Image Filter
Parameter
Variables
Output
Conversion
itkImage
VirtualPort
Spacing & Origin
Data
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Simulink
ITK
Simulink
Goals
• Ultimate Goal – ITK and Simple ITK in Matlab and Simulink
• Synergy between the SimpleITK group and SimITK group
• Both communities aim to simplify usage of ITK
• Lead Engineering Time to complete ITK -> XML wrapper
• Possibly modify to do ITK -> JSON wrapping instead
• JSON is compact, better at expressing an API description
• Ways to Fund Engineering Time for:
• Wrapping of ITK in Simulink and Matlab
• Extending this work to SimpleITK in Matlab/Simulink
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