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An Efficient and Robust Technique for Facial Expression Recognition Using Modified Hidden Markov Model

Author

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  • Mayur Rahul

    (AKTU, Lucknow, India)

  • Pushpa Mamoria

    (Department of Computer Applications, UIET, CSJMU, Kanpur, India)

  • Narendra Kohli

    (Department of Computer Science & Engineering, HBTU, Kanpur, India)

  • Rashi Agrawal

    (Department of IT, UIET, CSJMU, Kanpur, India)

Abstract

Partition-based feature extraction is widely used in the pattern recognition and computer vision. This method is robust to some changes like occlusion, background, etc. In this article, a partition-based technique is used for feature extraction and extension of HMM is used as a classifier. The new introduced multi-stage HMM consists of two layers. In which bottom layer represents the atomic expression made by eyes, nose and lips. Further, the upper layer represents the combination of these atomic expressions such as smile, fear, etc. Six basic facial expressions are recognized, i.e. anger, disgust, fear, joy, sadness and surprise. Experimental results show that the proposed system performs better than normal HMM and has an overall accuracy of 85% using the JAFFE database.

Suggested Citation

  • Mayur Rahul & Pushpa Mamoria & Narendra Kohli & Rashi Agrawal, 2018. "An Efficient and Robust Technique for Facial Expression Recognition Using Modified Hidden Markov Model," International Journal of Applied Evolutionary Computation (IJAEC), IGI Global, vol. 9(3), pages 12-22, July.
    • Handle: RePEc:igg:jaec00:v:9:y:2018:i:3:p:12-22
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