[Insight-users] doubt about DeformableRegistration1 and resampling

[Luis Ibanez]

Hi Serena,


1) What version of ITK are you using ?


2) Please look at the orientation matrix of the images
    and post it to the list.

    you can get it from


    ImageType::DirectionType direction = image->GetDirection()


3) Are you setting the direction of the resampling filter ?


4) Are you using DeformableRegistration1.cxx "AS IT IS IN ITK" ?
    or have you made any modifications to it ?



    Regards,


        Luis


-------------------
Serena Fabbri wrote:
> 
> Hi All,
> 
> I have a question.
> I am registering CT image with MR image of different healthy subjects.
> I use non rigid registration in particular I run 
> DeformableRegistration1.cxx
> 
> 
> MRI:-> fixed image
> size 176 256 160
> spacing (1 1 1)mm
> origin 0 0 0
> 
> CT immage: ->moving image
> size 512 512 29
> spacing (0.653595 0.653595 4)mm
> origin 0 0 0
> 
> 
> The registered image is not in the middle of FOV. It is always shifted 
> in the down rigth corner.
> I don't understand if my problem is a very bad choose of parameters 
> (like E, number of integration points, ecc) or somethings else.
> My guess is the resample step falls.
> is it possible? any idea?
> 
> any suggestion is very appreciated.
> 
> Serena.
> 
> 
> 
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