1. C++ implementation of deva ramanan’s articulated pose estimation with flexible mixtures of parts”articulated pose estimation with flexible mixtures-of-parts. https://github.com/wg-perception/PartsBasedDetector
2. Eigenfaces implementation. https://github.com/agyorev/Eigenfaces
3. Abboud, B., Davoine, F.: Bilinear factorisation for facial expression analysis and synthesis. Vision, image and signal processing. IEE Proc. 152(3), 327–333 (2005)
4. Ahlberg, J.: Candide-3–an updated parameterized face. Tech. rep., Report No. LiTH-ISY, Dept. of Electrical Engineering. Linkoping University, Sweden (2001)
5. Ahlberg, J.: An active model for facial feature tracking. EURASIP J. Appl. Signal Process. 2002(1), 566–571 (2002)