Proposal for Revised Framework

Let us suppose we want to perform a registration with the new framework.

There are a few key ingredients we need:

1. itkComposeTransform class , derived from itkTransform

2. itkTransformImageFilter --- takes itkTransform as input

3. Set up a multi-resolution optimization over the TransformImageFilter

4. For each transform within itkComposeTransform

--- optimize the metric(s) associated with that transform for n iterations or convergence

5. go to next level