[Insight-users] Visualizing a warped 3D volume?

[Luis Ibanez]

Hi Motes,

                                 Your lucky day!

The perfect application for visualizing deformation fields,
and for comparing the results of deformable registration is
the 4D Slicer "VV".

You can download it from:
http://www.midasjournal.org/browse/publication/617

or directly from the source at

     http://www.creatis.insa-lyon.fr/rio/vv

It is based on ITK, VTK and Qt.


The paper explains how to use it.


      Regards,


              Luis



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On Mon, Jul 27, 2009 at 7:10 AM, motes motes <mort.motes at gmail.com> wrote:

> I would like to test 3D warping of volumes based on the example:
>
> BSplineWarping2.cxx
>
> I was told that:
>
> brainweb1e1a10f20.mha
> brainweb1e1a10f20.raw
>
> from:
>
> http://public.kitware.com/pub/itk/Data/BrainWeb/BrainPart1.tgz
>
> contains a 3D volume of a brain. I have found some warp parameters in the
> file:
>
> InsightToolkit-3.12.0\Examples\Data\BSplineDisplacements2.txt
>
> I then call the 3D warping application with:
>
> BSplineDisplacements2.txt
> brainweb1e1a10f20.mha
> brainweb1e1a10f20.mha
> brainweb1e1a10f20_deformed.mha
> brainweb1e1a10f20_deformed_field.mhd
>
> The application runs for some time  and prints:
>
> 0.879992
> 0.889992
> 0.899992
> 0.909992
> 0.919992
> 0.929992
> 0.939992
> 0.949992
> 0.959992
> 0.969992
> 0.979992
> 0.989992
> 0.999991
> 1
>
>
> The files:
>
> brainweb1e1a10f20_deformed.mha (approx 7MB)
> brainweb1e1a10f20_deformed_field.raw (approx. 83 MB)
>
> Are produced. But how are 3D volume warping results visualized?
>
> Should I just extract each frame from eg. "brainweb1e1a10f20_deformed.mha
> and create eg difference images between each frame in the before and after
> volume?
>
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