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Automatic Feature Localization in Thermal Images for Facial Expression Recognition

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4 Author(s)
Trujillo, L. ; CICESE, Ensenada, BC, Mexico ; Olague, G. ; Hammoud, R. ; Hernandez, B.

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.

Published in:

Computer Vision and Pattern Recognition - Workshops, 2005. CVPR Workshops. IEEE Computer Society Conference on

Date of Conference:

25-25 June 2005