[Insight-users] BSpline Transformation and binary images

[Luis Ibanez]

Hi Serena,

I believe Hans Johnson reported a while ago that this
metric implementation had a bug that make it unsuitable
for registering binary images.

(My mistake for suggesting to use this metric for this
case without having tried).

Your options at this point are:


            A) Help us debug the metric   :-)


            B) Use the Cardinality Metric instead.
                 itkMatchCardinalityImageToImageMetric.h


Please let us know what would be your preference,


     Thanks


            Luis


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On Mon, Oct 12, 2009 at 7:23 PM, Serena Fabbri <fabbri at u.washington.edu> wrote:
> Hi All,
>
> I am trying to register binary images of the head using Non Rigid
> Registration. They are (80;80;101) pixelsize and (4;4;1)mm spacing.
>
> I use Mattes-MI, LBFGSB, NearestNeighbor interpolator and BSpline
> Transformation.
> After reading the email
> http://www.itk.org/pipermail/insight-users/2007-November/024178.html
>
> I set 2 bin and 10% of statistic for MI and I have got this message:
>
> Starting Registration
> ExceptionObject caught !
>
> itk::ExceptionObject (0x1900fb0)
> Location: "void itk::MattesMutualInformationImageToImageMetric<TFixedImage,
> TMovingImage>::GetValueAndDerivative(typename
> itk::ImageToImageMetric<TFixedImage, TMovingImage>::ParametersType&,
> typename itk::ImageToImageMetric<TFixedImage, TMovingImage>::MeasureType&,
> typename itk::ImageToImageMetric<TFixedImage,
> TMovingImage>::DerivativeType&) const [with TFixedImage = main(int,
> char**)::FixedImageType, TMovingImage = main(int, char**)::MovingImageType]"
> File: /Users/InsightToolkit-
> 3.10.0/Code/Algorithms/itkMattesMutualInformationImageToImageMetric.txx
> Line: 1160
> Description: itk::ERROR:
> MattesMutualInformationImageToImageMetric(0x1900260): Fixed image marginal
> PDF summed to zero
>
> I have increased the statistic until 30% and I get the same error.
> Is it possible that BSpline Transformation is not suitable for binary images
> registration?
>
> Any suggestion will be appreciate.
>
> Thanks.
>
> Serena.
>
>
>
>
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