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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 modelWritten 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
Templating
Virtual Block Template File
S-Function Template File
Simplified XML
Automatic Template Substitution by Perl Scripts
Matlab .mex File
Matlab Callback FIle Simulink
LIbrary7
Virtual Block
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SimulinkSimulink ITK
VirtualPort
ConversionitkImage
Update ITK Image Filter
itkImageConversion
VirtualPort
Parameter Variables
Conversion
Spacing & Origin
Data
Spacing & Origin
Data
Input
Output
Parameters
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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