A Human-Computer Interface Using Symmetry Between Eyes to Detect Gaze Direction.

John J. Magee Margrit Betke James Gips M. R. Scott Benjamin N. Waber A Human-Computer Interface Using Symmetry Between Eyes to Detect Gaze Direction. 1-1261 2008 38 IEEE Transactions on Systems, Man, and Cybernetics, Part A 6 http://dx.doi.org/10.1109/TSMCA.2008.2003466 db/journals/tsmc/tsmca38.html#MageeBGSW08