Laughter and smiling facial expression modelling for the generation of virtual affective behavior

Author:

Mascaró Miquel,Serón Francisco J.,Perales Francisco J.,Varona JavierORCID,Mas Ramon

Abstract

Laughter and smiling are significant facial expressions used in human to human communication. We present a computational model for the generation of facial expressions associated with laughter and smiling in order to facilitate the synthesis of such facial expressions in virtual characters. In addition, a new method to reproduce these types of laughter is proposed and validated using databases of generic and specific facial smile expressions. In particular, a proprietary database of laugh and smile expressions is also presented. This database lists the different types of classified and generated laughs presented in this work. The generated expressions are validated through a user study with 71 subjects, which concluded that the virtual character expressions built using the presented model are perceptually acceptable in quality and facial expression fidelity. Finally, for generalization purposes, an additional analysis shows that the results are independent of the type of virtual character’s appearance.

Funder

Ministerio de Econom´ıa, Industria y Competitividad

Agencia Estatal de Investigacion

European Regional Development Funds

Publisher

Public Library of Science (PLoS)

Subject

Multidisciplinary

Reference38 articles.

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2. Laughing, Tickling, and the Evolution of Speech and Self;RR Provine;Current Directions in Psychological Science,2004

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