Emerging Technology Trends on Advanced Engineering Research - 2012 |
Foundation of Computer Science USA |
ICETT - Number 2 |
January 2013 |
Authors: Ajaya A R, P. Petchimuthu, Kavitha V K |
349b9f62-5425-48d3-95c0-f37c53b4fc6d |
Ajaya A R, P. Petchimuthu, Kavitha V K . Emotion Analysis using Thermal Images based on Kernel Eigen Spaces. Emerging Technology Trends on Advanced Engineering Research - 2012. ICETT, 2 (January 2013), 41-45.
Emotion recognition using facial expression has become an active research topic in recent years. In this paper we present an efficient method for emotion recognition, which has better performance over previous art of works. This work proposes an efficient attempt to investigate the suitability and sensitivity of the thermal imaging technique to detect specific muscles heat patterns and there by predicting the emotions. In this work, feature extraction is carried out by Kernel PCM and emotion classification is performed using Multi Class SVM. Thermal imaging is used for the investigation of Action Unit (AU) productions. A facial AU represents the contraction of a specific muscle or a combination of muscles, and earlier research had demonstrated that such muscle contraction induces an increase in skin temperature. For this reason, thermal imaging analysis might be well suited to detect AU production and there by predicting the emotional state of a person. We used a multi class SVM approach to classify nine different AUs or combinations of AUs and to differentiate their speed and strength of contraction. The Multi class SVM classifier gives promising results for the emotion classification process