6ZHAO W, CHELLAPPA R, PUILLIPS P J, et al. Face recognition: a literature survey[ J ]. ACM Computing Surveys, 2003, 35 (4) : 399-458.
7NEFIAN A V. A hidden Markov model-based approach for face detection and recognition [ D ]. Atlanta: Georgia Institute of Technology, 1999.
8BRUNELLI R, POGGIO T. Face recognition: features versus templates[J]. IEEE Trans on Pattem Analysis and Machine Intelligence, 1993, 15(10): 1042-1052.
9SIROVITCH L, KIRBY M. Low-dimensional procedure for the characterization of human face [ J ]. Journal of the Optical Society of America, 1987, 4(3) :519-524.
10KIRBY M, SIROVITCH L. Application of Karhunen-Loeve procedure for the characterization of human faces[ J]. IEEE Trans on Pattern Analysis and Machine Intelligence, 1990, 12( 1 ) : 103-108.
