[Insight-users] Aligning Images based on Offset and Spacing,

[Miller, James V (Research)]

You can use the ResampleImageFilter to resample one of the image sets.

Pass one image set as the input to the ResampleImageFilter and pass the
other image set as the "Reference" image. 

  filter->SetInput( input->GetOutput() );
  filter->SetReferenceImage( reference->GetOutput() );
  filter->UseReferenceImageOn();
  filter->Update();



-----Original Message-----
From: insight-users-bounces+millerjv=crd.ge.com at itk.org
[mailto:insight-users-bounces+millerjv=crd.ge.com at itk.org]On Behalf Of
Hari Sundar
Sent: Monday, October 24, 2005 9:36 AM
To: Insight Users
Subject: [Insight-users] Aligning Images based on Offset and Spacing,


Hi,

This should be a trivial task, but I am not sure whats the best way to
do it. I have 2 3D volumes (from DICOM), which were acquired on the
same scanner, and are coregistered as a result. I convert them to the
MetaIO format. 

The problem I am facing is that they have different dimensions, spacing
and offsets. If these are taken into account, then they are perfectly
aligned. How can I produce 2 raw images from these volumes which are in
the same space ? I need to perform some very expensive operations
between the two volumes and would prefer not goining through the
transform/interpolator for each comparison.

thanks,
~Hari

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