@article{6drotationrepresentationforunconstrained,
  title = {6D Rotation Representation For Unconstrained Head Pose Estimation},
  author = {Thorsten Hempel and Ahmed A. Abdelrahman and Ayoub Al-Hamadi},
  year = {2022},
  eprint = {2202.12555},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2202.12555v2},
}