Two step appearance-based approach for fast and reliable face localization
Krzysztof Kucharski, Władysław Skarbek · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2006
Among many face detection methods the appearance-based ones have proved to be the most accurate and in particular the AdaBoost cascade algorithm is both accurate and a very fast technique. The high speed of the detector is a crucial parameter in many face detection applications, e.g. the face recognition. In this paper the central two-step detector is presented which is a serial connection of the cascade of the extended weak classifiers and the AdaBoost cascade. The cascade of the extended weak classifiers is a novel concept that accelerates the detection speed to a high degree. The second introduced novelty is the verification of the detection results with another AdaBoost cascade to push a number of false acceptances down to the extremely low level.