[Insight-users] register two volumes of different types

[Luis Ibanez]

Hi Grace,


It is Ok to register images with


       1) different physical dimensions
       2) different number of slices



   I don't know why your program is not working,...

                      But

   If you share with us the details on how *exactly*
   are you setting up the component of the registration
   framework, then we will be happy to help you figure
   out what is wrong with your program.


   Could you start by posting screenshots of your
   fixed and moving images ?


   You say that

      "the way the data looks is quite different "

   This doesn't tell us much, unless we can take a look
   at the images, or at least to a screenshot of the images.



      Thanks


        Luis



------------------
Grace Chen wrote:
> Hi George,
>  
> Thanx for your reply. What makes my program a bit challenging is the 
> fact that I am trying to register two volumes of different types (one is 
> T1 weighted image and the other is diffusion weighted image).  They have 
> different physical dimensions, different number of slices, and the way 
> the data looks is quite different too.  My ITK program used to work for 
> the volumes of the same time, but now I try to run it with two volumes 
> of different types, it gives me segamentation fault.  Do you know why?
>  
> Grace
>  
>  
> 
>     ----- Original Message -----
>     *From:* Li, George (NIH/NCI) <mailto:ligeorge at mail.nih.gov>
>     *To:* Grace Chen <mailto:Grace.Chen at swri.ca>
>     *Sent:* Thursday, December 01, 2005 7:58 AM
>     *Subject:* RE: [Insight-users] register two volumes of different types
> 
>     Grace:
>      
>     It does not have any restriction on the dimension of the two image
>     volumes.
>      
>     George
>      
>      
>     George G. Li, Ph.D.
>     ligeorge at mail.nih.gov <mailto:ligeorge at mail.nih.gov>
>     Office: (301)451-8955
>     _____________________________________________
>      
>     Radiation Oncology Branch
>     National Cancer Institute, NIH
>     Bldg 10, CRC, Rm B2-3561
>     10 Center Drive, MSC-1682
>     Bethesda, MD 20892, USA
> 
>         -----Original Message-----
>         *From:* Grace Chen [mailto:Grace.Chen at swri.ca]
>         *Sent:* Wednesday, November 30, 2005 4:58 PM
>         *To:* insight-users at itk.org
>         *Subject:* [Insight-users] register two volumes of different types
> 
>         Hi there,  Good day!
>          
>         I have two 3D image data I want to register.  The movement in
>         the data is 3D rigid.  So, I use VersorRigid3DTransform.  The
>         two volumes are different types of image data (one is T1 image,
>         and the other is diffusion weighted image), so I use
>         MattesMutualInformationImageToImageMetric. I know ITK can
>         register two volumes of different physical dimension.  But
>         doesn't it also register two volumes that have different number
>         of slices?  My program doesn't work for two volumes of different
>         types, am I missing something?
>          
>         Grace  
> 
> 
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