Projects/Structural/2007 Project Week Nonrigid Groupwise Registration

Key Investigators

• MIT: Serdar K Balci, Polina Golland
• Kitware: Luis Ibanez

Objective

Our objective is to bring a collection of images into joint alignment.

Approach, Plan

We implemented a non-rigid groupwise registration method using sum of pixelwise entropies as a joint alignment criterion. We extended ITK's pairwise registration framework to include groupwise registration methods. The provide an efficient implementation of the objective function using a parallel implementation. We have chosen B-splines as our non-rigid deformation model and optimized ITK's B-Spline implementation.

Our plan is to incorporate our implementation into ITK and to provide test cases for validation.

Progress

The code is submitted to ITK repositories(DONE). Submission to Insight Journal.

References