@inproceedings{ICPR-v1-2000-SturmQ,
	author        = "Peter F. Sturm and Long Quan",
	booktitle     = "{Proceedings of the 15th International Conference on Pattern Recognition, Volume 1}",
	doi           = "10.1109/ICPR.2000.905278",
	isbn          = "0-7695-0750-6",
	pages         = "1072--1075",
	publisher     = "{IEEE Computer Society}",
	title         = "{Camera Calibration and Relative Pose Estimation from Gravity}",
	year          = 2000,
}