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Titolo:
A principal component analysis of facial expressions
Autore:
Calder, AJ; Burton, AM; Miller, P; Young, AW; Akamatsu, S;
Indirizzi:
MRC, Cognit & Brain Sci Unit, Cambridge CB2 2EF, England MRC Cambridge England CB2 2EF Brain Sci Unit, Cambridge CB2 2EF, England Univ Glasgow, Dept Psychol, Glasgow G12 8RT, Lanark, Scotland Univ Glasgow Glasgow Lanark Scotland G12 8RT ow G12 8RT, Lanark, Scotland Univ York, Dept Psychol, York YO1 5DD, N Yorkshire, England Univ York York N Yorkshire England YO1 5DD YO1 5DD, N Yorkshire, England ATR, Human Informat Proc Res Labs, Kyoto, Japan ATR Kyoto JapanATR, Human Informat Proc Res Labs, Kyoto, Japan
Titolo Testata:
VISION RESEARCH
fascicolo: 9, volume: 41, anno: 2001,
pagine: 1179 - 1208
SICI:
0042-6989(200104)41:9<1179:APCAOF>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNDERSTANDING FACE RECOGNITION; INTERACTIVE ACTIVATION MODEL; CATEGORICAL PERCEPTION; EMOTION RECOGNITION; COVERT RECOGNITION; VISUAL INFORMATION; NEURAL-NETWORK; BRAIN INJURY; IDENTITY; FAMILIAR;
Keywords:
facial perception; PCA; face recognition; image processing; facial expression;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
82
Recensione:
Indirizzi per estratti:
Indirizzo: Calder, AJ MRC, Cognit & Brain Sci Unit, 15 Chaucer Rd, Cambridge CB2 2EF,England MRC 15 Chaucer Rd Cambridge England CB2 2EF e CB2 2EF, England
Citazione:
A.J. Calder et al., "A principal component analysis of facial expressions", VISION RES, 41(9), 2001, pp. 1179-1208

Abstract

Pictures of facial expressions from the Ekman and Friesen set (Ekman, P., Friesen, W. V., (1976). Pictures of facial affect. Pale Alto. California: Consulting Psychologists Press) were submitted to a principal component analysis (PCA) of their pixel intensities. The output of the PCA was submitted to a series of linear discriminant analyses which revealed three principal findings: (1) a PCA-based system can support facial expression recognition,(2) continuous two-dimensional models of emotion (e.g. Russell, J. A. (1980). A circumplex model of affect. Journal of Personality and Social Psychology, 39, 1161-1178) are reflected in the statistical structure of the Ekmanand Friesen facial expressions, and (3) components for coding facial expression information are largely different to components for facial identity information. The implications for models of face processing are discussed. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 12:23:26