FACIAL EXPRESSION CLASSIFICATION WITH HAAR FEATURES, GEOMETRIC FEATURES AND CUBIC BÉZIER CURVES

Yıl 2013, Cilt: 13 Sayı: 2, 1667 - 1673, 25.12.2013

Rembiye Kandemir Gonca Özmen

Öz

Facial expressions are nonverbal communication channels to interact with other people.  Computer recognition of human emotions based on facial expression is  an interesting and difficult problem. In this study, images were analyzed based on facial expressions and tried to identify different emotions, such as smile, surprise, sadness, fear, disgust, anger and  neutral. In practice, it was used Viola-Jones face detector  used  AdaBoost  algorithm for  finding the location of the face. Haar filters were used in finding the eyes and mouth. In cases where erroneous detection of the mouth and eyes, facial geometric ratios were used. Cubic Bézier curves were used in determining emotion. FEEDTUM facial expression database were used for training and testing. The seven different emotions used for the study, the recognition success rates ranged from 97%  to 60%.

Anahtar Kelimeler

Emotion Recognition, Facial Expression Recognition, AdaBoost, Haar Features, Bézier curves.

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• University, Turkey, as a lecturer.