A SYSTEM FOR VISION BASED APPROACH FOR LIP CORNER DETECTION

摘要

A system and method for lip and lip corner detection using computer vision based techniques have been disclosed. The proposed system uses an integral image to extract Haar like features for face detection. Further, the system employs edge detection and clustering techniques to localize the lips on the detected face. A weighted sum of square difference technique is then applied to the lip region to determine the lip corners. The system does not depend on color models, contour extraction models or template matching techniques for lip and lip corner detection. Hence, the system is not sensitive to contour and color models and enables rapid and accurate lip and lip corner detection in real time.