Parameterized facial expression synthesis based on MPEG-4

Raouzaiou, A; Tsapatsoulis, N; Karpouzis, K; Kollias, S

dc.contributor.author	Raouzaiou, A	en
dc.contributor.author	Tsapatsoulis, N	en
dc.contributor.author	Karpouzis, K	en
dc.contributor.author	Kollias, S	en
dc.date.accessioned	2014-03-01T01:18:11Z
dc.date.available	2014-03-01T01:18:11Z
dc.date.issued	2002	en
dc.identifier.issn	1110-8657	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14847
dc.subject	Activation	en
dc.subject	Facial expression	en
dc.subject	MPEG-4 facial definition parameters	en
dc.subject	Parameterized expression synthesis	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Animation	en
dc.subject.other	Human computer interaction	en
dc.subject.other	Image analysis	en
dc.subject.other	Speech	en
dc.subject.other	Facial animation parameters (FAP)	en
dc.subject.other	Face recognition	en
dc.title	Parameterized facial expression synthesis based on MPEG-4	en
heal.type	journalArticle	en
heal.identifier.primary	10.1155/S1110865702206149	en
heal.identifier.secondary	http://dx.doi.org/10.1155/S1110865702206149	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	in the framework of MPEG-4, one can include applications where virtual agents, utilizing both textual and multisensory data, including facial expressions and nonverbal speech, help systems become accustomed to the actual feelings of the user. Applications of this technology are expected in educational environments, virtual collaborative workplaces, communities, and interactive entertainment. Facial animation has gained much interest within the MPEG-4 framework; with implementation details being an open research area (Tekalp, 1999). In this paper, we describe a method for enriching human computer interaction, focusing on analysis and synthesis of primary and intermediate facial expressions (Ekman and Friesen (1978)). To achieve this goal, we utilize facial animation parameters (FAPs) to model primary expressions and describe a rule-based technique for handling intermediate ones. A relation between FAPs and the activation parameter proposed in classical psychological studies is established, leading to parameterized facial expression analysis and synthesis notions, compatible with the MPEG-4 standard.	en
heal.publisher	HINDAWI PUBLISHING CORPORATION	en
heal.journalName	Eurasip Journal on Applied Signal Processing	en
dc.identifier.doi	10.1155/S1110865702206149	en
dc.identifier.isi	ISI:000179327900003	en
dc.identifier.volume	2002	en
dc.identifier.issue	10	en
dc.identifier.spage	1021	en
dc.identifier.epage	1038	en