search

nghorbani / amass

Data preparation and loader for AMASS
https://amass.is.tue.mpg.de/
Other
621 stars 80 forks source link

Are the markers in the correct position? #32

Closed hwy1992129 closed 2 years ago

hwy1992129 commented 2 years ago

I visualize the markers on SMPL-X addon in Blender. The markers are not symmetric. Some markers are in the wired positions. image image image I have one more question. Why the joints in SMPL model are not symmetric?

nghorbani commented 2 years ago

Hi, For your first question, that is just the way original mocap markers are placed on the body. Furthermore, asymmetric marker placement is a strategy to make side identification for cleaning easier.

The marker labels is not important to MoSh since it optimizes the placement anyways in stageI. Please refer to MoSh or SOMA to learn more on marker based mocap and internals of MoSh.

SMPL joints are learned during SMPL model training to be inside the mesh volume and be center of rotation.

Best, Nima