[Insight-users] Need help regarding registration techniques (ITK newbie :) )

[Karthik Krishnan]

The DICOM reader, while reading your DICOM datasets will ensure this.

On Sun, Aug 23, 2009 at 10:34 PM, BalajiR <r.balaji at siemens.com> wrote:

>
> Hello All,
>
> In the ITK Software Guide (Section 8.3.2) , I read that it is absolutely
> critical to set the pixel size and the origin for the registration to be
> successful. The CT and PET image that Iam trying to register are also of
> different sizes and I think I need to set the pixel size and the origin
> properly. Both the CT and PET data in my case are DICOM files.
>
> Can you please let me know how I can set the pixel size and the origin ?
>
> Thanks for your help.
>
> Balaji
>
>
> BalajiR wrote:
> >
> > Hello all,
> >
> > I have started using ITK for solving a 3D image registration problem
> which
> > merges CT and PET images. I need your help in choosing the right
> algorithm
> > for my purpose.
> >
> > From what I have gathered, Demons algo will only work with images (fixed
> > and moving) that have same intensities. Iam right now looking at
> > DeformableRegistration8.cxx that is part of the ITK examples. This
> > implements the B-Spline deformable registration and the comments indicate
> > that it can work for multi-modality registration which is exactly what
> Iam
> > trying to do. But when I execute it, it takes a long time to complete the
> > registration.
> >
> > Can you please advice on which algo will be suitable and if possible the
> > reason behind the time taken by the B-Spline algo ?
> >
> > Thanks for your help.
> >
> > Regards,
> > Balaji
> >
>
> --
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>
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