Face Detection by Direct Convexity Estimation

We suggest a novel attentional mechanism for detection of smooth convex and concave objects based on direct processing of intensity values. The operator detects the regions of the eyes and hair in a facial image, and thus allows us to infer the face location and scale. Our operator is robust to variations in illumination, scale, and face orientation. Invariance to a large family of functions, serving for lighting improvement in images, is proved. An extensive comparison with edgebased methods is delineated.

• Type: Conference
• Year: 1997
• Where: AVBPA
• Authors: Ariel Tankus, Hezy Yeshurun, Nathan Intrator
• Keywords: AVBPA 1997, Biometrics, Face Location, Intensity Values, Smooth Convex