transform the parameters in new_joint_vecs/ to SMPL format

[coralemon]

No description provided.

[coralemon]

hi, how to transform the parameters in the ground truth files new_joint_vecs/XX.npy (M*263) to SMPL format, (global T, R,body para)?

[coralemon]

And also, how to transform the SMPL para to 263 parameters?

[GuyTevet]

SMPL -> 263(humanml): use https://github.com/EricGuo5513/HumanML3D scripts
263(humanml) -> SMPL: use SMPLify optimization script

[coralemon]

q1. I am wondering if the local rotation in 263 shape is the same as the definition in SMPL? It seems not, and I am confused why not using original parameters in amass?
q2. The correct SMPL rotation parameters should be generated from joints/ or new_joints/?
q3. Is the coordinate system of global translation(new_opt_cam_t) the global world system?

[GuyTevet]

For Q1 the answer is no. For all the rest, it will be wiser to ask https://github.com/EricGuo5513/HumanML3D for the details.