[vtkusers] REG: best method for closest point search

[Kiran, P (CORP, GEITC)]

Hi VTK gurus,

I am doing 3-D image registration work. Right now, I am using the some
built-in locators to find the closest point of one surface to the other.
Has anyone implemented  a FindClosestPoint method that uses kd trees in VTK?
Are there  any best methods techniques for finding the closest point?
Thanks in advance for help.
Kiran