1. Huang L-L, Shimizu A, Hagihara Y and Kobatake H (2003) Gradient feature extraction for classification-based face detection. Pattern Recognition 36:2501:2511
2. Heisele B, Serre T, Pontil M and Poggio T (2001) Component-based Face Detection. CVPR 01:657–662
3. Bileschi S, Heisele B (2002) Advances in Component-Based Face Detection. In: Proceedings of the First International Workshop on Pattern Recognition with Support Vector Machines. Springer-Verlag, London, UK
4. Viola P, Jones M (2001) Rapid object detection using a boosted cascade of simple features. In: Proceedings of CVPR 1:511–518
5. Lienhart R, Kuranov A, Pisarevsky V (2002) Empirical Analysis of Detection Cascades of Boosted Classifiers for Rapid Object Detection. Technical report, Microprocessor Research Lab, Intel Labs