We propose an unsupervised Local and Global feature extraction paradigm to approach the problem of facial expression recognition in thermal images. Starting from local, low-level features computed at interest point locations, our approach combines the localization of facial features with the holistic approach. The detailed steps are as follows: First, face localization using bi-modal thresholding is accomplished in order to localize facial features by way of a novel interest point detection and clustering approach. Second, we compute representative Eigenfeatures for feature extraction. Third, facial expression classification is made with a Support Vector Machine Committiee. Finally, the experiments over the IRIS data-set show that automation was achieved with good feature localization and classification performance.


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    Title :

    Automatic Feature Localization in Thermal Images for Facial Expression Recognition


    Contributors:
    Trujillo, L. (author) / Olague, G. (author) / Hammoud, R. (author) / Hernandez, B. (author)


    Publication date :

    2005-01-01


    Size :

    314623 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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