@inproceedings{gauglitz2012live,
  title={Efficient Computation of Absolute Pose for Gravity-Aware Augmented Reality},
  author={Sweeney, Chris and Flynn, John, and Nuernberger, Benjamin and Turk, Matthew and Hollerer, Tobias},
  booktitle={Mixed and Augmented Reality (ISMAR), 2015 IEEE International Symposium on},
  year={2015},
  organization={IEEE}
}