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- W4309175606 abstract "Facial expressions (FEs) are one of the most preeminent means of conveying one’s emotions and are pivotal to nonverbal communication. Potential applications in a wide range of areas in computer vision have lent a strong impetus to research in the domain of automatic facial expression recognition. This work discusses the effectiveness of two optical flow-based features for modeling the FEs associated with prototypic emotions based on the pattern of nonrigid deformable motion of facial components occurring during their portrayal. The discernible motion patterns are categorized into distinct discrete classes with the descriptive features indicating the global spatial distribution of deformation derived from the dense optical flow field associated with emotional and neutral face images. Results obtained with evaluation on images and video clips taken from Extended Cohn-Kanade, Japanese Female Facial Expressions, and Dynamic Karolinska Directed Emotional Faces datasets with multi-class support vector machine and [Formula: see text]-nearest neighbor classifiers are competent with the state-of-the-art techniques and concordant with empirical psychological studies in emotion science." @default.
- W4309175606 created "2022-11-24" @default.
- W4309175606 creator A5066320379 @default.
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- W4309175606 date "2022-12-27" @default.
- W4309175606 modified "2023-10-17" @default.
- W4309175606 title "Modeling and Analysis of Discrete Facial Expressions with Dense Optical Flow-derived Features" @default.
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- W4309175606 doi "https://doi.org/10.1142/s2811032322500035" @default.
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