[Insight-users] exception using 2D bspline deformable registration

[Sachin Jambawalikar]

Hi Luis , 
 Even when I try running from command line   the exe
deformabelregistration4 and deformableregistration6 (after compiling
itk with examples and no modifications )  I get the same errors for my
datasets . But If  I use  Brain web simulated datasets they work .
is it because of the size of my data  512 x 512 x 60 (0.68x0.68x3) 
for 3D  where as the brain data had size  181x 217x 180 ( 1x1x1)  or
is it because of the contrast enhancement between the images.

You can download  two of my volumes  in meta  image format (I tried
using dicom Images 2D with just 2 2D slices  but same result ) from:

http://www.ic.sunysb.edu/Stu/sjambawa/b_images/volumes.tar.gz

thanks ,

Best  Regards

--Sachin



On Fri, 01 Oct 2004 15:00:52 -0400, Luis Ibanez <luis.ibanez at kitware.com> wrote:
> 
> Hi Sachin,
> 
> Did you modified the code in any way before
> applying it to your data ?
> 
> If so, please post to the list the *exact* .cxx
> file that you used.
> 
> It seems that the problem is related to the optimizer
> setting, and not to the number of parameters.
> 
> In particular we suspect of the lines: 265-269.
> 
>    optimizer->SetGradientConvergenceTolerance( 0.05 );
>    optimizer->SetLineSearchAccuracy( 0.9 );
>    optimizer->SetDefaultStepLength( 1.5 );
> 
> Since the error message is comming from the optimizer
> and it is related to the convergence criteria.
> 
>    Thanks
> 
>      Luis
> 
> --------------------------
> 
> 
> Sachin Jambawalikar wrote:
> 
> > Hi all,
> >
> > I am using the example code DeformableRegistration4 to register   2D
> > slices of dynamci contrast breast mri data  .
> >
> > I get the following exception:
> >
> >
> > ImageRegion (0033BF04)
> >   Dimension: 2
> >   Index: [0, 0]
> >   Size: [512, 512]
> >
> >
> > ImageRegion (0033DEA4)
> >   Dimension: 2
> >   Index: [0, 0]
> >   Size: [512, 512]
> >
> >
> > totalGridSize: [8, 8]
> > spacing: [0.683594, 0.683594]
> > origin: [-192.401, -149.008]
> > numberOfParameters:128
> > Intial Parameters =
> > [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
> > , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> >  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
> > , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
> >
> > Starting Registration
> >  F = 18707.5, GNORM = 198.347
> > *************************************************
> >    I   NFN    FUNC        GNORM       STEPLENGTH
> > IFLAG= -1. LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN
> >  OF LINE SEARCH: INFO=3 POSSIBLE CAUSES: FUNCTION OR GRADIENT ARE  INCORRECT OR
> > INCORRECT TOLERANCESvnl_lbfgs: ** EEEK **
> > ExceptionObject caught !
> >
> > itk::ExceptionObject (00F2FB80)
> > Location: "Unknown"
> > File: g:\itk_vtk\itk\insighttoolkit-1.6.0\code\common\itkBSplineDeformableTransf
> > orm.txx
> > Line: 232
> > Description: itk::ERROR: BSplineDeformableTransform(003337D0): Mismatched betwee
> > n parameters size and region size
> >
> >
> >
> > Am i doing something wrong
> >
> > Regards
> > --Sachin
> > _______________________________________________
> > Insight-users mailing list
> > Insight-users at itk.org
> > http://www.itk.org/mailman/listinfo/insight-users
> >
> >
> 
>