[Insight-users] increasing bspline control point density

[Karl Baum]

Hi,
I am using BSplines to provide the transformations necessary for my
registration.  I would like to take an iterative approach where I first do
registration with a low control point density, and then use the results as
input to a registration with a higher control point density.  The issue I am
facing at this point in time is how to initialize the parameters of the
second iteration with the results of the first iteration.  In other words I
need to take the grid defined by the deformation coefficients of the first
iteration, and use it as input into the second.  To do this I need to
calculate the starting deformation coefficients on the higher density grid. 

Does itk provide anything to do this?  I was unable to find any
documentation addressing this.

Thanks,
Karl