R. Donner, M. Reiter, G. Langs, P. Peloschek, H. Bischof:
"Fast Active Appearance Model Search Using Canonical Correlation Analysis";
IEEE Transactions on Pattern Analysis and Machine Intelligence, 28 (2006), 10; 1690 - 1694.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC06586955