The Euler angles calculated from the annotation files are too different from the Euler angles predicted by the model.

[Ding2Zhen]

Thank you very much for your excellent work and dataset for person face/head analysis. The Euler angles I get using the rotation matrix are very different from the Euler angles in the predictions obtained in the demo.py, and I find that the predicted Euler angles look a little more accurate, but the Euler angles obtained by the rotation matrix are quite incorrect.
I would appreciate you being able to elaborate on how the Euler angle is calculated in the code, thank you very much.