[Insight-users] Re: [Paraview] 3D Deformable Registration Deformation Field

[Luis Ibanez]

Hi Kevin,

Thanks for posting the screenshots of the deformation field
visualizations.

Your verbal description was accurate.  Therefore, there is
definitely something wrong going on with the deformable
registration process.

Could you please post the .mhd files of your deformation
fields ?

like "set50_s_10_field.mhd"

Those are the text headers of the MetaImage format, they
should give us an idea of the number of pixels in the 3D
deformation field as well as the pixel size in 3D.


   Thanks


      Luis



--------------------
Kevin Ming wrote:
> Hi,
> 
> I was able to get a deformation field output from my 3D deformable 
> registration, but it's not what I was expecting to see:  There seem to 
> be 64 sets of arrows, which is good because it corresponds to the 64 
> slices of MRI data I used.  But each of the sets of arrows, supposedly 
> from each of the slices, seem to originate from a single point on a 
> line.  I was expecting to see the field in a manner similar to that of 
> the 2D deformable registration examples, where arrows are located on the 
> images in plane, showing what features have moved and where they have 
> moved to.  Is it possible to get that in the 3D case?  Are there other 
> ways of visualizing 3D deformation fields in ParaView?
> 
> Note that my fixed, moving, and output images for the registration are 
> in the ANALYZE format (.hdr and .img files) and my deformation field is 
> in the Meta image file format (.mhd and .raw files).
> 
> 
> Thank You,
> Kevin
> 
> 
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