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... control parameters were added and additional features were derived from, and closely mapped to, FACS Action Units. Figure 3 shows the controllable parameters of the virtual head, modelled in VRML. It is clear that these parameters alone do not allow representation of all facial expressions that are possible in real life. ...
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... The term nonverbal communication is used to describe all human communication and interaction that does not include the spoken or written word. Recent work in analyzing and defining nonverbal communication has come from the field of animation linked to the creation of virtual environments as described, for example, by Fabri, Moore, and Hobbs (2008). Much of this is based on Argyle's (1996) classification of nonverbal communication. ...
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Abstract. This paper presents a method for the representation of mood
in FACS-based facial expressions. To achieve this, a mapping of FACS
Action Units (AUs) into the Pleasure-Arousal-Dominance (PAD) space
is done. The PAD space is used as our mood model. From this mapping
a set of rules are obtained, which compute the activation areas and in-
tensities of each AU in the PAD. To validate these rules, we conducted
an experiment, shedding light on the AUs combinations that result in
recognizable expressions of certain mood.
