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Recognize Emotions from Facial Expressions Using a SVM and Neural Network Schema

  • Isidoros PerikosEmail author
  • Epaminondas Ziakopoulos
  • Ioannis Hatzilygeroudis
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 517)

Abstract

Emotions are important and meaningful aspects of human behaviour. Analyzing facial expressions and recognizing their emotional state is a challenging task with wide ranging applications. In this paper, we present an emotion recognition system, which recognizes basic emotional states in facial expressions. Initially, it detects human faces in images using the Viola-Jones algorithm. Then, it locates and measures characteristics of specific regions of the facial expression such as eyes, eyebrows and mouth, and extracts proper geometrical characteristics form each region. These extracted features represent the facial expression and based on them a classification schema, which consists of a Support Vector Machine (SVM) and a Multilayer Perceptron Neural Network (MLPNN), recognizes each expression’s emotional content. The classification schema initially recognizes whether the expression is emotional and then recognizes the specific emotions conveyed. The evaluation conducted on JAFFE and Kohn Kanade databases, revealed very encouraging results.

Keywords

Emotion recognition Facial gestures Human-computer interaction Support vector machines Multilayer Perceptron Neural Network 

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Isidoros Perikos
    • 1
    Email author
  • Epaminondas Ziakopoulos
    • 1
  • Ioannis Hatzilygeroudis
    • 1
  1. 1.School of Engineering, Department of Computer Engineering & InformaticsUniversity of PatrasPatrasGreece

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