how to get the skeleton from 3D human model?

[ForrestPi]

Hi, could you provide the code how to get the skeleton from 3D human model?

[johndpope]

for clarity (i maybe mistaken - already spent a few days on this)
the goal is to develop a system to project 3D skeletons onto 2D pose images

it needs perspective - camera intrinsics (focal range / etc)
https://github.com/johndpope/MIMO-hack/blob/main/data/001/camera.json

https://github.com/johndpope/MIMO-hack/blob/main/test_motion.py
https://github.com/johndpope/MIMO-hack/blob/main/smplx_pose_frame_0.png

i just wonder whether this work is a bin job - and it would be better to use facebook sapiens as prior model
https://github.com/facebookresearch/sapiens?tab=readme-ov-file

UPDATE - this code looks closer
https://github.com/SiTH-Diffusion/SiTH/blob/main/fit.py

UPDAte 2 - check this out
https://github.com/YuliangXiu/PuzzleAvatar/

UPDAte 3 - noteworthy....
https://github.com/johndpope/TeCH/tree/main/utils/body_utils/lib/pixielib
https://raw.githubusercontent.com/johndpope/TeCH/refs/heads/main/utils/body_utils/lib/pixielib/pixie.py