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  Visual Perception and Evaluation of Photo-Realistic Self-Avatars from 3D Body Scans in Males and Females

Thaler, A., Piryankova, I., Stefanucci, J., de la Rosa, S., Streuber, S., Romero, J., et al. (2018). Visual Perception and Evaluation of Photo-Realistic Self-Avatars from 3D Body Scans in Males and Females. Frontiers in ICT, 5: 18, pp. 1-14. doi:10.3389/fict.2018.00018.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-BA22-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-7B45-7
Genre: Journal Article

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 Creators:
Thaler, A1, 2, Author              
Piryankova, I, Author              
Stefanucci, J, Author              
de la Rosa, S1, 2, 3, Author              
Streuber, S.4, Author              
Romero, J.4, Author              
Black, M.4, Author              
Mohler, BJ2, 5, 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, ou_1497794              
3Project group: Social & Spatial Cognition, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528706              
4Dept. Perceiving Systems, Max Planck Institute for Intelligent Systems, Max Planck Society, ou_1497642              
5Research Group Space and Body Perception, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528693              

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 Abstract: The creation or streaming of photo-realistic self-avatars is important for virtual reality applications that aim for perception and action to replicate real world experience. The appearance and recognition of a digital self-avatar may be especially important for applications related to telepresence, embodied virtual reality, or immersive games. We investigated gender differences in the use of visual cues (shape, texture) of a self-avatar for estimating body weight and evaluating avatar appearance. A full-body scanner was used to capture each participant's body geometry and color information and a set of 3D virtual avatars with realistic weight variations was created based on a statistical body model. Additionally, a second set of avatars was created with an average underlying body shape matched to each participant's height and weight. In four sets of psychophysical experiments, the influence of visual cues on the accuracy of body weight estimation and the sensitivity to weight changes was assessed by manipulating body shape (own, average) and texture (own photo-realistic, checkerboard). The avatars were presented on a large-screen display, and participants responded to whether the avatar's weight corresponded to their own weight. Participants also adjusted the avatar's weight to their desired weight and evaluated the avatar's appearance with regard to similarity to their own body, uncanniness, and their willingness to accept it as a digital representation of the self. The results of the psychophysical experiments revealed no gender difference in the accuracy of estimating body weight in avatars. However, males accepted a larger weight range of the avatars as corresponding to their own. In terms of the ideal body weight, females but not males desired a thinner body. With regard to the evaluation of avatar appearance, the questionnaire responses suggest that own photo-realistic texture was more important to males for higher similarity ratings, while own body shape seemed to be more important to females. These results argue for gender-specific considerations when creating self-avatars.

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 Dates: 2018-072018-09
 Publication Status: Published online
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 Identifiers: DOI: 10.3389/fict.2018.00018
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Title: Frontiers in ICT
Source Genre: Journal
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Publ. Info: Lausanne, Switzerland : Frontiers Media
Pages: - Volume / Issue: 5 Sequence Number: 18 Start / End Page: 1 - 14 Identifier: -