1. Hjelmäs, E., Low, B.K.: Face Detection (A Survey). Computer Vision and Image Understanding, 236–274 (2001)
2. Yang, M.H.: Recent Advances In Face Detection. In: International Conference on Pattern Recognition (2004)
3. Ji, E.M., Yoon, H.S., Lee, S.H.: A New Face Detection Method Using Combined Features of Color and Edge Under the Illumination Variance. Information Science (2002)
4. Kass, M., Witkin, A., Terzopoulos, D.: Snakes: Active Contour Models. International Journal of Computer Vision 1, 321–331 (1987)
5. Yuille, A.L., Hallinan, P.W., Cohen, D.S.: Feature Extraction From Faces Using Deformable Templates. IEEE Computer Vision and Pattern Recognition, 104–109 (1989)