[Insight-users] Insight-users Digest, Vol 74, Issue 4

[Ganesh Narayanasamy]

Hi Tom,
 Thanks for the clarification. I should have asked, how would I interpret the color image of deformation field? Is there a color bar that I can look-up to? 
For eg., vector deformation fields could be shown as in this example: http://www.math.uh.edu/~razencot/MyWeb/Research/Cardiac_Echography2.html
or using arrows as shown in "B. Vector plots of total shape change" in http://www.biomedcentral.com/1471-2202/7/63/figure/F4?highres=y

Please clarify,
Ganesh

 
> Hi Ganesh,
> 
> Not sure I understand your question. A deformation field is a vector
> field not an scalar field. If you are looking for the deformed image
> you need to warp your input image with the deformation field you have.
> This will give you a "volume" and not a "vector volume"...
> 
> As for slicer IO problems, you may want to ask them directly.
> 
> Cheers,
> Tom
> 
> On Wed, Jun 2, 2010 at 01:34, Ganesh Narayanasamy <nganesh76 at hotmail.com> wrote:
> >
> > When I ran DiffeomorphicDemons fast symmetric algorithm between a pair of 3D
> > data sets, I saved the deformation field which is attached here. Can you
> > tell me what is wrong with this color image attached? How come this file is
> > a "vector volume" while both the input images are "volume" and why cannot
> > this deformation field be saved as a tiff file in Slicer?
> > -Ganesh
> >

 		 	   		  
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