@article{camerabasedphysiologicalsensingchallenge,
  title = {RGB Camera-based Physiological Sensing: Challenges and Future Directions},
  author = {Xin Liu and Shwetak Patel and Daniel McDuff},
  year = {2021},
  eprint = {2110.13362},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2110.13362v2},
}