* good paper http://www.cs.colostate.edu/~vision/faceperf/Bolme_IISWC2007.pdf
==== Elastic Bunch Graph Matching (EBGM) ====
** PCA
* Download csu FacePerf software: http://www.cs.colostate.edu/~ross/downloads/csuFaceIdEval5.tgz
** normalization schedule: