2014 Summer Project Week:Intelligent Steering

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Key Investigators

  • Marcel Prastawa, GE
  • Jim Miller, GE
  • Steve Pieper, Isomics

Project Description

Steered image registration in Slicer using intelligent interaction rather than direct interaction where user specifies deformation changes.


  • Develop interaction schemes that allows users to indicate incorrect regions
  • Provide intelligent interfaces so users provide minimal interaction without detailed control of image deformations

Approach, Plan

  • Investigate data exploration techniques for highlighting common registration errors (local rotation, shift, and scaling)
  • Implement efficient, responsive extensions using the Slicer 4 Python extension platform and PyOpenCL


  • Testing the use of robust PCA for providing hints on rotational misalignment
  • Investigating the modeling of appropriate correction steps given the possible misalignments


Video of Direct Steering Interaction