Why does evaluation align at the midpoint of hip joints, not pelvis?

[isarandi]

Thank you for this great dataset!

While going through the eval code, I noticed that for root-relative MPJPE, the alignment is performed at the midpoint between the left and right hip joints and not at the pelvis joint. Is there any particular reason for this?

emdb/evaluation_metrics.py

Line 94 in 9a4eab6

def align_by_pelvis(joints, verts=None):

Thanks!

[kaufManu]

Hi, happy to hear you find the data useful! There is no particular reason - we just decided to follow the AGORA protocol where they do the same.