Computer vision is gaining momentum towards variety of applications in recent days, in this context, we have done survey of face recognition technology and algorithms for the current trend applications. Here we describe the necessity and adopted methods to detect a human face. Since the data is computed by the computer, many algorithms are developed to detect a face. Some of the key challenges for the process of face detection are discussed. A rapid approach to detect face developed by viola and jones is explained in brief. The 4 main concepts involved in the viola jones method such as haar features, integral image, Adaboost and classifier cascade are highlighted, this work will help image accelerators, enhancements, filmy and military purposes.

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Adaboost Face Detection Challenges Haar Cascade