[Insight-developers] Anyone working on adding support for images with non-uniform sample spacing to ITK v4?

[Cory Quammen]

At the ITK workshop in Bethesda and during a subsequent microscopy
telecon, a need for image types with non-uniform sample spacing was
identified. I personally have a need for 3D images with irregular
spacing in z, so I am interested in hearing if anyone is pursuing or
is going to pursue explicit support for such an image type in ITK v4.

My particular need boils down to having the method
TransformIndexToPhysicalPoint() return a point that takes the
non-uniform spacing in z into account. Right now I have a hack to make
this happen in an ImageSource subclass, but I would like to have a
more principled design.

If anyone is interested, I have some ideas for implementing a
RectilinearImage type that supports non-uniform spacing along each
dimension, as well as some ideas on how to refactor the image type
hierarchy (in a backwards-compatible way) to more nicely support this
type of image.

Cheers,
Cory

-- 
Cory Quammen
Computer Integrated Systems for Microscopy and Manipulation (CISMM)
Department of Computer Science
University of North Carolina at Chapel Hill
http://www.cs.unc.edu/~cquammen