Facial expression analysis using Active Shape Model

Reda Shbib, Shikun Zhou

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    Abstract

    Facial expressions analysis is a vital part of the research in human-machine interaction. This chapter introduces an automatic recognition system for facial expression from a front view human face image. Obtaining an effective facial representation from initial face images is an essential phase for strong and efficient facial expression system. In this chapter we have developed a facial expression analysis system. Firstly we have tried to evaluate facial analysis base on Active shape model (ASM). In order to detect the face images, Adaboost classifier and Haar-Like feature has been adopted to achieve face detection and tracking. The ASM then has been automatically initiated in the detected face image. Then, discriminates and reliable facial feature points has been extracted applying ASM fitting technique. The geometric displacement among the projected ASM feature points coordinates and the mean shape of ASM were used to evaluate facial expression. Using support vector machine (SVM) classifier, the obtained results has reached a recognition rate of 93 %.
    Keywords: Facial Expression Recognition, Image
    Original languageEnglish
    Pages (from-to)9-22
    Number of pages14
    Journal International Journal of Signal Processing, Image Processing and Pattern Recognition
    Volume8
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 2015

    Keywords

    • facial expression recognition
    • image processing

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