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

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 addit...

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Autores principales:	Miquel Mascaró, Francisco J Serón, Francisco J Perales, Javier Varona, Ramon Mas
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c1f527e5fce84eb89fb050031964bafa
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spelling	oai:doaj.org-article:c1f527e5fce84eb89fb050031964bafa2021-12-02T20:05:39ZLaughter and smiling facial expression modelling for the generation of virtual affective behavior.1932-620310.1371/journal.pone.0251057https://doaj.org/article/c1f527e5fce84eb89fb050031964bafa2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251057https://doaj.org/toc/1932-6203Laughter 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.Miquel MascaróFrancisco J SerónFrancisco J PeralesJavier VaronaRamon MasPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251057 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Miquel Mascaró Francisco J Serón Francisco J Perales Javier Varona Ramon Mas Laughter and smiling facial expression modelling for the generation of virtual affective behavior.
description	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.
format	article
author	Miquel Mascaró Francisco J Serón Francisco J Perales Javier Varona Ramon Mas
author_facet	Miquel Mascaró Francisco J Serón Francisco J Perales Javier Varona Ramon Mas
author_sort	Miquel Mascaró
title	Laughter and smiling facial expression modelling for the generation of virtual affective behavior.
title_short	Laughter and smiling facial expression modelling for the generation of virtual affective behavior.
title_full	Laughter and smiling facial expression modelling for the generation of virtual affective behavior.
title_fullStr	Laughter and smiling facial expression modelling for the generation of virtual affective behavior.
title_full_unstemmed	Laughter and smiling facial expression modelling for the generation of virtual affective behavior.
title_sort	laughter and smiling facial expression modelling for the generation of virtual affective behavior.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/c1f527e5fce84eb89fb050031964bafa
work_keys_str_mv	AT miquelmascaro laughterandsmilingfacialexpressionmodellingforthegenerationofvirtualaffectivebehavior AT franciscojseron laughterandsmilingfacialexpressionmodellingforthegenerationofvirtualaffectivebehavior AT franciscojperales laughterandsmilingfacialexpressionmodellingforthegenerationofvirtualaffectivebehavior AT javiervarona laughterandsmilingfacialexpressionmodellingforthegenerationofvirtualaffectivebehavior AT ramonmas laughterandsmilingfacialexpressionmodellingforthegenerationofvirtualaffectivebehavior
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Laughter and smiling facial expression modelling for the generation of virtual affective behavior.

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