[Insight-users] itkEuclideanDistancePointMetric bug or a feature ?

[Peter]

Checking the <b>itkEuclideanDistancePointMetric for point based registration</b> 
I found that the <b>points of the "movingPointSet" are transformed"</b> before 
the distance is computed. 


According to the documentation (8.3.1.) the direction of the transform optimized 
for in the registration framework "is the one that maps points <b>from</b> the 
physical space of the <b>fixed image</b> <b>into</b> the physical space of the 
<b>moving image</b>". 


Correct me if I'm wrong, but in this sense, for the ICP pointSet to pointSet 
registration rather the fixed points should be transformed or an inverse 
Transform (if existing) should be passed to the metric. Isn't it ? 


Is this now a bug or a feature (for a general metric implementation) ? 

Cheers,
--Peter

p.s. ITK version 3.16.