Psychophysical investigation of facial expressions using computer animated faces

Rita T. Griesser, Douglas W. Cunningham, Christian Wallraven, Heinrich H. Bülthoff

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationProceedings - APGV 2007
Subtitle of host publicationSymposium on Applied Perception in Graphics and Visualization
Pages11-18+154
DOIs
Publication statusPublished - 2007
EventAPGV 2007: 4th Symposium on Applied Perception in Graphics and Visualization - Tubingen, Germany
Duration: 2007 May 252007 May 27

Publication series

NameACM International Conference Proceeding Series
Volume253

Other

OtherAPGV 2007: 4th Symposium on Applied Perception in Graphics and Visualization
CountryGermany
CityTubingen
Period07/5/2507/5/27

Keywords

  • 3D-scanning
  • Face recognition
  • Facial animation
  • Facial expressions
  • Perceptual graphics
  • Psychophysics

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

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  • Cite this

    Griesser, R. T., Cunningham, D. W., Wallraven, C., & Bülthoff, H. H. (2007). Psychophysical investigation of facial expressions using computer animated faces. In Proceedings - APGV 2007: Symposium on Applied Perception in Graphics and Visualization (pp. 11-18+154). (ACM International Conference Proceeding Series; Vol. 253). https://doi.org/10.1145/1272582.1272585