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

[Karthik Krishnan]

If possible, it would be nice to keep quick conversion to a
vtkRectilinearGrid in mind (by grabbing a pointer to the internal
representation etc), much like we do with ITK images and vtkImageData.

Thanks
--
karthik

On Tue, Oct 5, 2010 at 9:24 AM, Cory Quammen <cquammen at cs.unc.edu> wrote:

> 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 <http://www.cs.unc.edu/%7Ecquammen>
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