[Insight-users] Image Registration with DICOM slides

[Sylvain Jaume]

Hi Dime,

You can use an initializer.

typedef itk::CenteredTransformInitializer< TransformType,
FixedImageType,
MovingImageType
 > TransformInitializerType;

TransformInitializerType::Pointer initializer =
TransformInitializerType::New();

initializer->SetTransform( transform );
initializer->SetFixedImage( fixedImageReader->GetOutput() );
initializer->SetMovingImage( movingImageReader->GetOutput() );
initializer->MomentsOn();
initializer->InitializeTransform();

Regards,
Sylvain

milentie at arcor.de wrote:
> Hi ITK,
>
> i implemented a Application for 3D Image Registration and i use MutualInformation as metric, Gradient Descent Optimazer and Affine Transformation. So my application is working well wenn i use as input 3D mha files but it is not working wenn i use DICOM files. With the DICOM file i get this error: 
>              
>                        "Too many pixel mapped outside moivin image buffer: 0/1000"
>
> and my tutor sad to me, that the problem is because the origins from the DICOMs different are, and the metric function take a pixel at some position in the fixed DICOMs but at the same position in the moving DICOMs is nothing because for example the origin of the fixed DICOM is (0,0,0) and for the moving DICOMs (-103,50,20). So a try to fixed that but stiil a get the same error. 
> Can u help me, it is very urgen, because i am informatik student and a have for my seminar ITK as topic and i have to do presentatin on ITK and i have to develope this application. 
>
> Can u pleace help me?
>
> Thanks 
>   Dime
>
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