[Insight-users] constrain on registration

[Luis Ibanez]

Hi Qing,

If you have a good guess of the values of the parameters
you should feed this information in the initialization of the
transform.

Please look at the ITK Software Guide

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

for a description of the parameters for this transform.

There are only a couple of optimizers in ITK that will
consider constrains on the range of the parameters.

You may want to look at:
http://public.kitware.com/Insight/Doxygen/html/classitk_1_1LBFGSBOptimizer.html


Note that you could also use a Command/Observer to control the
optimizer and redirect it when it is getting out of a predefined range.
That will be specific code, different for every optimizer.


      Regards,


           Luis


---------------------------------------------------------------------
On 6/22/07, qing xu <qingxu8 at hotmail.com> wrote:
>
> Hi,
>
> I am using VersorRigid3DTransformOptimizer. Could anyone tell me how to
> constrain the registration parameters?  I have already known the
> approximate
> range of the parameters, so I want to use this information to align two
> volumes. Thanks in advance.
>
> Qing
>
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