[Insight-users] 3D rigid registration with Mutual Information

[Luis Ibanez]

Hi Will,


1) Did you added the configuratgion for the MI metric ?

       a) Number of histogram bins ?

       b) Number of samples ?


    Please post your code to the list.



2) What are the characteristics of your images ?

    a) origin in mm (x,y,z) ?
    b) pixel spacing in mm (x,y,z) ?
    c) number of pixels along each dimension ?
    d) pixel type ?
    e) image modality ? (MRI, CT, US, microscopy) ?
    f) image orientation ? (direction cosines) ?



   Please let us konw,


      Thanks


          Luis



------------------------
William Whartenby wrote:
> I am trying to modify the 3D rigid registration (as given in Examples, 
> ImageRegistration8) to use Mutual information. I have tried changing the
> itkMeanSquaresImageToImageMetric.h include
> and
> typedef itk::MeanSquaresImageToImageMetric< 
>                                   FixedImageType, 
>                                     MovingImageType >    MetricType;
> to both MattesMutualInformation and MutualInformation,
> and the code builds, but seems to give wrong results. In one test case, 
> the MattesMutual will not even do one iteration, just reports a fit 
> (where the two images aren't registered)
>   Anone know why this is?
> TYVM
> Will
> 
> 
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