[Insight-users] Re: Demons Registration

[Luis Ibanez]

Hi Ping,



1) The Demons method is described in the ITK Software Guide.

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

    in section 8.14. pdf-page 469.


2) The papers that you must read are cited in that section:


    J. P. Thirion. Fast non-rigid matching of 3D medical image.
                   Technical report, Research Report RR-2547,
                   Epidure Project, INRIA Sophia, May 1995.


    J.-P. Thirion. Image matching as a diffusion process:
                   an analogy with maxwell’s demons.
                   Medical Image Analysis,
                   2(3):243–260, 1998.


3) Yes, the Standard deviations are intended to be used by
         smoothing filters that are applied to the deformation
         field and in this way will create the equivalent of
         an elastic constrain in the deformation.




Happy reading !  :-)



    Regards,



       Luis




-------------------
ping chen wrote:

> Hi Everyone,
> 
> I am trying to use Demons registration for
> inter-subject MR brain image registration. I have some
> questions about the parameter setting in Demons
> method. 
> 
> filter->SetStandardDeviations( 1.0 );
> 
> this standardDeviation is trying to set the Gaussian
> smoothing filter, which is used to smooth the
> deformation field, right? 
> 
> Another question is how this parameter is set? Is
> there any published papers which talked about this
> parameter setting?  Any information is appreciated.
> Thanks a lot. 
> 
> Thanks,
> -Ping 
> 
>  
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around 
> http://mail.yahoo.com 
> 
>