[Insight-users] Problem about the ITKAPP-IntensityBased2D3DRegistration

[jimmy]

Thank you for your reply.

The version of Insight and InsightApplication are both 2.8.1.

Line 994 is where the problem located.
Could you tell me that what the meaning of weightings here used by Optimizer?
optimizer->SetScales(weightings);  // <- what do the scales stand for?

I have also downloaded the newest version of IntensityBased2D3DRegistration, it seems to be unchanged.
The file version is  "Version:   $Revision: 1.4 $ ".

Thanks in advance.


------------------				 
jimmy
2007-07-23

-------------------------------------------------------------
发件人：Luis Ibanez
发送日期：2007-07-22 23:01:25
收件人：jimmy
抄送：insight-users
主题：Re: [Insight-users] Problem about the	ITKAPP-IntensityBased2D3DRegistration


Hi Jimmy,

   What version of Insight             are you using ?
   What version of InsightApplications are you using ?

Over time the API of some of the ITK transforms has changed.
Notably, the Center of rotation, used to be part of the
parameters of the transform. This may explain the mismatch
between 6 and 9 parameters.

It is likely that you are combining two imcompatible versions
of Insight and InsightApplications.


 Please let us know,


   Thanks


      Luis


--------------
jimmy wrote:
> Hi, everyone:
>  
> When I running the ITKAPP [IntensityBased2D3DRegistration],
> an error occurs as the following: 
>  
> itk::ExceptionObject (00F7FCD0)
> Location: "void __thiscall itk::RegularStepGradientDescentBaseOptimizer::Advance
> OneStep(void)"
> File: ITKSource\Code\Numerics\itkRegularStepGradientDescentBaseOptimizer.cxx
> Line: 200
> Description: itk::ERROR: RegularStepGradientDescentOptimizer(015128A8): The size
>  of Scales is 6, but the NumberOfParameters for the CostFunction is 9.
>  
> Can someone tell my why?   ( The test example is from BrainWeb )
>  
> 1.
> Is it the problem of   
> itk::Optimizer::ScalesType weightings( 6 );  ?
>  
> What does it use for?  How to expand it into *9?*
>  
> 2.
> And when I ignore the option of the command line
>  ./IntensityBased2D3DRegistration [-t -100 -100 -100] projection.mhd /data/BrainWeb/brainweb165a10f17.mha
>  
> The iteration of optimizer is 0, and the parameters of transform do not change.
> furthermore the programe crashed when writing the wrong result image.
>  
> Don't you think it is more reasonable that we should not input any tranformation information before registration?
>  
>  
>  
> --------------           
> jimmy
> 2007-07-18                              
> 
> 
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