A small question on unit velocity field

[xiaorugao999]

Hello, thank you for your perfect work. I have a small question I'd like to ask you. Why do we multiply by (z-1) instead of (z-1)/2 when smoothing the velocity field?

[cwmok]

@xiaorugao999
You're correct. The correct way should be * (z-1)/2. But this work was my very preliminary work and all the results in the paper are reported using this code. I tend to preserve this minor mistake for better reproducibility.

Thanks for pointing it out.

[xiaorugao999]

@cwmok
Thank you for your timely response. I have recently encountered some issues with deformation field normalization, and I have learned a lot through your code. Once again, thank you for your excellent work.