[Insight-users] 3D image sub-volume and transform matrix

[Dženan Zukić]

Maybe this example will help:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/VolumeRendering/itkVtkImageConvert


On Thu, Nov 10, 2011 at 21:28, Jeremy Lecoeur <jeremy.lecoeur at vanderbilt.edu
> wrote:

>
>
> Hello,
>
> I have two 3D images, one is a sub-volume of the other but is not in the
> same orientation.
> For the big image, I know its size and also the coordinates in mm of its
> first voxel with respect to a frame of reference.
> For the small image, I know its size, the coordinates in mm of its first
> voxel with respect to the same frame of reference and also the 3 euler
> angles (phi, theta, psi) that defines its orientation.
> With that, how can I compute the transformation matrix that will allow
> me to see the small image in the big image, at the right place? I know
> it's supposed to be fairly simple but I cannot figure it out.
>
> Jeremy
>
> --
> Jeremy Lecoeur, Ph.D.
>
>
>
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