I’ve segmented out the premaxilla of several guppies that I CT scanned. I place landmarks on one of the models and am trying to use ALPACA to transfer these landmarks to other models. This works well when I use two models that are very similar, but does not work to transfer landmarks between males and females (females are about twice as big as males).
I have tried changing the alpha and beta values but this doesn’t fix the problem.
I’m wondering if ALPACA is able to deal with similar structures that are different sizes? Does either registration step account for size or do they only account for position and local shape change?
Thanks for any help!