search

Walter0807 / MotionBERT

[ICCV 2023] PyTorch Implementation of "MotionBERT: A Unified Perspective on Learning Human Motion Representations"
Apache License 2.0
1k stars 120 forks source link

about world coordinate 3d data #109

Closed soobinseo closed 9 months ago

soobinseo commented 9 months ago

Thank you for providing the excellent code.

I have a question about the H36M 3D data. I noticed that the root's z-values are all set to 0 from the preprocessed 3d data. Does this mean that the poses are estimated in a coordinate system with the root at z=0? If so, Is there any data available that predicts the actual 3D joint positions in world coordinates including camera information?

Walter0807 commented 9 months ago

Thanks for your interest in our work. Predicting absolute depth from monocular images can be ambiguous, especially using only 2D pose as input. For this line of work, you can check VirtualPose.