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          Institute: MPI für biologische Kybernetik     Collection: Biologische Kybernetik     Display Documents

ID: 270098.0, MPI für biologische Kybernetik / Biologische Kybernetik
Psychophysical evaluation of animated facial expressions
Authors:Wallraven, C.; Breidt, M.; Cunningham, D.; Bülthoff, H.
Date of Publication (YYYY-MM-DD):2005-08
Title of Proceedings:Proceedings of the 2nd Symposium on Applied Perception in Graphics and Visualization
Start Page:17
End Page:24
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The human face is capable of producing an astonishing variety of expressions---expressions for which sometimes the smallest difference changes the perceived meaning noticably. Producing realistic-looking facial animations that are able to transport this degree of complexity continues to be a challenging research topic in computer graphics. One important question that remains to be answered is: When are facial animations good enough? Here we present an integrated framework in which psychophysical experiments are used in a first step to systematically evaluate the perceptual quality of computer-generated animations with respect to real-world video sequences. The result of the first experiment is an evaluation of several animation techniques in which we expose specific animation parameters that are important for perceptual fidelity. In a second experiment we then use these benchmarked animations in the context of perceptual research in order to systematically investigate the spatio-temporal characteristics of ex
pressions. Using such an integrated approach, we are able to provide insights into facial expressions for both the perceptual and computer graphics community.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Holger Fischer
Affiliations:MPI für biologische Kybernetik/Psychophysics (Dept. Bülthoff)
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