[Insight-users] initial parameters for affine registration

[Luis Ibanez]

Hi Ilker,


1) Yes, it is likely that the optimization parameters will have to be
    adjusted for a different pair of images.  Unless, the image
    acquisition protocol of the new pair of images is the same as the
    first pair of images that you already registered.


2) You can pass the initial transform parameters via the array that
    is passed to the registration method class in the method

    SetInitialTransformParameters()

    You will find multiple examples of this usage in the
    "Image Registration" chapter of the ITK Software Guide


      http://www.itk.org/ItkSoftwareGuide.pdf



   Regards,



      Luis



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ilker hacıhaliloğlu wrote:
> Hi All
> 
> I am doing 3D affine registration with mattesmutual information but I 
> have 2 questions
> 
> 1- I have really good registration results but I wanna know if we change 
> the volumes to be registered do we always need to change the 
> optimization parameters?
> I mean step length ; number of bins and spatial samples    ? Cause I am 
> registering Ultrasound images and whenever i change the columes I also 
> need to change these parmeters
> 
> 2- Lets say I want to start with initial translation parameters x=- 8 
> y=1 z=1 How can I define this ?? I tried setting the intialparameters 
> but its now working somehow.
> 
> Thank you very much for all the help
> ilker
> -- 
> ------------------------------------------------------------------
> 
> '.....ich möchte mir eine ader öffnen, die mir die ewige freiheit 
> schaffte....'
> 
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