1. Cootes, T.F., Edwards, G.J., Taylor, C.J.: Active appearance models. IEEE Trans. Pattern Anal. Mach. Intell. 23(6), 681–685 (2001)
2. Edwards, G.J., Cootes, T.F., Taylor, C.J.: Face recognition using active appearance models. In: European Conference on Computer Vision, pp. 581–595. Springer, Heidelberg (1998)
3. Cho, K.S., Kim, Y.G.: Face Tracking System using Active Appearance Model. Sejong University Department of Computer Engineering. Conference proceedings, HCI Society of Korea, pp. 300–305 (2006)
4. Cho, D., Lee, S., Suh, I.H.: Facial feature tracking using adaptive particle filter and active appearance model. J. Korea Robot. Soc. 8(2), 104–115 (2013)
5. Ju, M.H., Kang, H.B.: 3D face model fitting method based on active appearance model with 3D depth estimation. J. KIISE: Softw. Appl. 39(2), 109–117 (2012)