[Insight-users] finding inverse deformation field

[Sara Rolfe]

Hello,

In case anyone else has a similar problem, I switched to using the  
IterativeInverseDeformationFieldImageFilter and was able to get it to  
work just fine for my application.

Thanks,
Sara


On Apr 11, 2011, at 4:34 PM, Sara Rolfe wrote:

> Hello,
>
> I'm using landmark warping following the example  
> LandmarkWarping2.cxx to deform an image.  I'd now like to find  
> vector field mapping the original image to the  warped image which  
> is the inverse of the field produced.  I've tried using the  
> itkInverseDeformationFieldImageFilter, but the results are very  
> poor.  I am guessing this is because the resolution is too low, but  
> with a subsampling factor of less than about 10, the computational  
> time is very long.
>
> Is there a better way to solve this problem?  Also, in practice,  
> should results from itkInverseDeformationFieldImageFilter resemble  
> the correct output, even with lower resolution?  I'm wondering if I  
> could have something else wrong.
>
> Thanks,
> Sara
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