Facial feature detection using distance vector fields.

Stylianos Asteriadis Nikos Nikolaidis Ioannis Pitas Facial feature detection using distance vector fields. 1388-1398 2009 42 Pattern Recognition 7 http://dx.doi.org/10.1016/j.patcog.2009.01.009 db/journals/pr/pr42.html#AsteriadisNP09