Volker Blanz Patrick Grother P. Jonathon Phillips Thomas Vetter Face Recognition Based on Frontal Views Generated from Non-Frontal Images. 454-461 2005 conf/cvpr/2005 CVPR (2) http://dx.doi.org/10.1109/CVPR.2005.150 db/conf/cvpr/cvpr2005-2.html#BlanzGPV05