Moving from manually interaction with machines to automated systems,
stressed on the importance of facial expression recognition for human computer
interaction (HCI). In this article, an investigation and comparative study
about the use of complex wavelet transforms for Facial Expression Recognition
(FER) problem was conducted. Two complex wavelets were used as feature
extractors; Gabor wavelets transform (GWT) and dual-tree complex wavelets
transform (DT-CWT). Extracted feature vectors were fed to principal component
analysis (PCA) or local binary patterns (LBP). Extensive experiments were
carried out using three different databases, namely; JAFFE, CK and MUFE
databases. For evaluation of the performance of the system, k-nearest neighbor
(kNN), neural networks (NN) and support vector machines (SVM) classifiers were
implemented. The obtained results show that the complex wavelet transform
together with sophisticated classifiers can serve as a powerful tool for facial
expression recognition problem.
facial expression recognition complex wavelet transform local binary pattern principle component analysis neural networks support vector machines
Subjects | Engineering |
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Journal Section | Articles |
Authors | |
Publication Date | April 7, 2017 |
Published in Issue | Year 2017 Volume: 9 Issue: 1 |