Human face detection in a scene

A new method to locate human faces in a complex background is proposed. This system utilizes a hierarchical knowledge-based method and consists of three levels. The higher two levels are based on mosaic images at different resolutions. In the lower level, an improved edge detection method is proposed. The problem of scale is solved, and the system is made more practical, so that it can locate unknown human faces spanning a wide range of sizes in a complex black-white picture.<
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