[Elastix] Using a mask for image registration

אורי ובר oriweber at gmail.com
Fri Feb 6 10:39:39 CET 2015


Hi good Elastix users,
I'm using a fixed mask which is a slightly scaled binary representation of
the fixed image non zero values, to improve registration computation
run-time.
I wonder what effect the mask has of the registration as the results are
slightly less accurate.
Is it only sample values within the mask (I'm using Grid sampling mehanism)?
Is it only choosing control points within the mask (I'm using
RandomCoordinate && NewSamplesEveryIteration==true &&
UseRandomSampleRegion==true)?
Any other effect on the registration?

Thanks,
Ori
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