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  Psychophysical investigation of facial expressions using computer animated faces

Griesser, R., Cunningham, D., Wallraven, C., & Bülthoff, H. (2007). Psychophysical investigation of facial expressions using computer animated faces. In C. Wallraven, & V. Sundstedt (Eds.), APGV '07: 4th Symposium on Applied Perception in Graphics and Visualization (pp. 11-18). New York, NY, USA: ACM Press.

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APGV-2007-Griesser.pdf (Any fulltext), 541KB
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Griesser, RT1, 2, Author              
Cunningham, DW, Author              
Wallraven, C1, 2, Author              
Bülthoff, HH1, 2, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: The human face is capable of producing a large variety of facial expressions that supply important information for communication. As was shown in previous studies using unmanipulated video sequences, movements of single regions like mouth, eyes, and eyebrows as well as rigid head motion play a decisive role in the recognition of conversational facial expressions. Here, flexible but at the same time realistic computer animated faces were used to investigate the spatiotemporal coaction of facial movements systematically. For three psychophysical experiments, spatiotemporal properties were manipulated in a highly controlled manner. First, single regions (mouth, eyes, and eyebrows) of a computer animated face performing seven basic facial expressions were selected. These single regions, as well as combinations of these regions, were animated for each of the seven chosen facial expressions. Participants were then asked to recognize these animated expressions in the experiments. The findings show that the animated avatar in general is a useful tool for the investigation of facial expressions, although improvements have to be made to reach a higher recognition accuracy of certain expressions. Furthermore, the results shed light on the importance and interplay of individual facial regions for recognition. With this knowledge the perceptual quality of computer animations can be improved in order to reach a higher level of realism and effectiveness.

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 Dates: 2007-07
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.1145/1272582.1272585
BibTex Citekey: 4465
 Degree: -

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Title: 4th Symposium on Applied Perception in Graphics and Visualization (APGV 2007)
Place of Event: Tübingen, Germany
Start-/End Date: 2007-07-25 - 2007-07-27

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Title: APGV '07: 4th Symposium on Applied Perception in Graphics and Visualization
Source Genre: Proceedings
 Creator(s):
Wallraven, C1, Editor            
Sundstedt, V, Editor
Affiliations:
1 Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797            
Publ. Info: New York, NY, USA : ACM Press
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 11 - 18 Identifier: ISBN: 978-1-59593-670-7