2012 Winter Project Week:FastInterpolation

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  Projects List

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  Synthetic example used for tests.

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  Ovelay of images to register.

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  Registered images.

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  Computed deformation field.

Key Investigators

• Ivan Kolesov : Georgia Institute of Technology
• Greg Sharp : MGH
• Allen Tannenbaum : Boston University

Objective

• Goal: Create a deformable registration approach for computing large deformations(e.g. in the presence of abnormalities, between different patients)
• A stochastic registration algorithm has been implemented.
• Bottleneck is performing image interpolation quickly.

Approach, Plan

• Take advantage of the structure of deformation (parameterized deformation field).
• Perform approximate interpolation.
• Make algorithmic improvements to allow for large 3D datasets to be used.

Progress

• Proposed an optimization ~100x faster than previous version
• Tested on the 2D phantom image above.

Delivery Mechanism

This work will be delivered to the NA-MIC Kit as a

1. Slicer Module (via PLUS and OpenIGTLink)

References