[Insight-developers] Bug in Mattes?

[Nicholas Tustison]

Hi developers,

So I was working through a broken linear registration in our software set-up
and noticed a couple changes in Mattes which might be a likely culprit.  In
ITK 3.20, there are two calls to GetJacobian() on lines 1569 and 1613
of itkMattesMutualInformationImageToImageMetric.hxx
However, in the current version at the corresponding locations, we have one 
call to 

transform->ComputeJacobianWithRespectToParameters(
  this->m_FixedImageSamples[sampleNumber].point, jacobian);

and the other to 

this->m_BSplineTransform->ComputeJacobianFromBSplineWeightsWithRespectToPosition()

This seems incorrect but I wanted to shoot an email to the list to see if anybody
else noticed this and if this is indeed a bug.

Thanks,
Nick