MPEG-4 facial expression synthesis

Malatesta, L; Raouzaiou, A; Karpouzis, K; Kollias, S

dc.contributor.author	Malatesta, L	en
dc.contributor.author	Raouzaiou, A	en
dc.contributor.author	Karpouzis, K	en
dc.contributor.author	Kollias, S	en
dc.date.accessioned	2014-03-01T01:31:15Z
dc.date.available	2014-03-01T01:31:15Z
dc.date.issued	2009	en
dc.identifier.issn	1617-4909	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19764
dc.subject	Embodied Conversational Agent	en
dc.subject	Facial Animation	en
dc.subject	Facial Expression	en
dc.subject	Action Unit	en
dc.subject.classification	Computer Science, Information Systems	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Animation	en
dc.subject.other	Face recognition	en
dc.subject.other	Ketones	en
dc.subject.other	Real time systems	en
dc.subject.other	Action units	en
dc.subject.other	Appraisal theories	en
dc.subject.other	Embodied conversational agents	en
dc.subject.other	Facial Animation Parameters	en
dc.subject.other	Facial Expression syntheses	en
dc.subject.other	Facial expressions	en
dc.subject.other	Real measurements	en
dc.subject.other	Temporal evolutions	en
dc.subject.other	Motion Picture Experts Group standards	en
dc.title	MPEG-4 facial expression synthesis	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s00779-007-0164-1	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00779-007-0164-1	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	The current work will describe an approach to synthesize expressions, including intermediate ones, via the tools provided in the MPEG-4 standard based on real measurements and on universally accepted assumptions of their meaning, taking into account results of Whissel's study. Additionally, MPEG-4 facial animation parameters are used in order to evaluate theoretical predictions for intermediate expressions of a given emotion episode, based on Scherer's appraisal theory. MPEG-4 FAPs and action units are combined in modeling the effects of appraisal checks on facial expressions and temporal evolution issues of facial expressions are investigated. The results of the synthesizing process can then be applied to Embodied Conversational Agents (ECAs), rendering their interaction with humans, or other ECAs, more affective. © Springer-Verlag London Limited 2007.	en
heal.publisher	SPRINGER LONDON LTD	en
heal.journalName	Personal and Ubiquitous Computing	en
dc.identifier.doi	10.1007/s00779-007-0164-1	en
dc.identifier.isi	ISI:000261069900010	en
dc.identifier.volume	13	en
dc.identifier.issue	1	en
dc.identifier.spage	77	en
dc.identifier.epage	83	en