However, the translation of FACS to characterization of emotions is elusive in the literature. There is broad interest in the application of FACS for assessing consumer expressions as an indication of emotions to consumer product-stimuli. To characterize human emotions, researchers have increasingly utilized Automatic Facial Expression Analysis (AFEA), which automates the Facial Action Coding System (FACS) and translates the facial muscular positioning into the basic universal emotions.
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