6Krinidis M, Nikolaidis N, Pitas I. 3D head pose estimation in monocular video sequences by sequential camera self-calibration [J]. IEEE Transactions on Circuits and Systems for Video Technology(S 1051-8215), 2009, 19(2): 261-272.
7Matsumoto Y, Sasao N, Suenaga T, et al. 3D model-based 6-DOF head tracking by a dingle camera for human-robot interaction[C]//IEEE International Conference on Robotics and Automation, Kobe, May 12-17, 2009:3194-3199.
8Panerai F, Hanneton S, Droulez J. A 6-dof device to measure head movements in active vision experiments: geometric modeling and metric accuracy [J]. Journal of Neuroselenee Methods(S0165-0270), 1999, 90(2): 97-106.
9Blanton B, Jose S. Hybrid head-tracker being examined for the high-accuracy attack rotorcraft market [J], Proc. of SPIE (S0277-786X), 2002, 4711: 117-123.
10Kijima R, Yamada E, Ojika T, et al. A development of reflex HMD-HMD with time delay compensation capability [C]// Proceedings of International Symposium on Mixed Reality, Yokohama, March 14-15, 2001: 1-8.