[Insight-users] Re: Problems with Insight's registration application

[Luis Ibanez]

Hi Ying,

I'm assuming that you are talking about the application:

    InsightApplications/IntensityBased2D3DRegistration/

Is that right ?


[In the future, you may want to be more specific when you
  post your questions to the mailing list]


---


I just retried the commands that are described in the README.txt
file and they work for me.  I'm not getting any error related
to number of parameters.

Did you changed the Transform of this code ?

If so, could you please post your code to the list ?


    Thanks


       Luis


PS: Here are the commands I tried, just as described in
the README.txt file:

==========================================================

A) GenerateProjection


A.1) Translate the image by (-100,-100,-100) then project.

./GenerateProjection  -t -100 -100 -100 
/data/BrainWeb/brainweb165a10f17.mha  projection.mhd

A.2) Translate the image by (-100,-100,-100),
      rotate 10 degrees around x, then project.

./GenerateProjection  -t -100 -100 -100 -rx 10 
/data/BrainWeb/brainweb165a10f17.mha projection.mhd


B) IntensityBased2D3DRegistration


B.1) Register the image that was generated.

./IntensityBased2D3DRegistration -t -100 -100 -100 projection.mhd 
/data/BrainWeb/brainweb165a10f17.mha


B.2) Register the image that was generated with rotation.


./IntensityBased2D3DRegistration -t -100 -100 -100  -rx 10 
projection.mhd /data/BrainWeb/brainweb165a10f17.mha



===================================================
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ttang at homeworking.org wrote:
> Hello Luis,
> 
> 
> 
> I would like to perform 2d-3d registration using mutual information and possibly other metrics. I have tried running the Insight example but experience the same problem as Rafi did (see below):
> 
> 
> 
> 
> by rafi Feb 15, 2006; 03:26am :: Rate this Message:   (use ratings to moderate[?])
> 
> Reply | Reply to Author | Show Only this Message | Link to this Message 
> 
> 
> Hi Karthik,
> 
> Thank you very much; it is what I was looking for.
> 
> However, it seems that the code is not working.
> 
> I did what it says in the README file and it fails at run time with an exception claiming the number of parameters defined was 6 while the transformation expected 9... 
> 
> After fixing this, it still does not work and finish after the first iteration claiming the gradient difference is zero (I followed it in the debugger) while the 2 images are not the same.
> 
>>From the debugger, it seems that the gradient difference is always zero no mater how you change the parameters
> 
> Can you advice what is missing there? 
> 
> Thanks,
> 
> Rafi
> 
> 
> 
> 
> I tried to use Mattes' MI instead of graident difference but then I had problems with calculating the derivative. What is the status of this application? Could you please give us some suggestions/ directions on this?
> 
> 
> 
> Thanks for your help,
> Ying
> 
>