Image-Based Face Recognition Algorithms

PCA, ICA, LDA, EP, EBGM, Kernel Methods, Trace Transform,
AAM, 3-D Morphable Model, 3-D Face Recognition,
Bayesian Framework, SVM, HMM, Boosting & Ensemble,
Algorithms Comparisons

you name it. you got it all here.
http://www.face-rec.org/algorithms/

and ... also at Intel OpenCV
http://opencvlibrary.sourceforge.net/FaceRecognition

you wanna know, which one of them is the best?
check out this comparison
http://www.cs.colostate.edu/evalfacerec/