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Effects of animation retargeting on perceived action outcomes

2017

Conference Paper

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The individual shape of the human body, including the geometry of its articulated structure and the distribution of weight over that structure, influences the kinematics of a person's movements. How sensitive is the visual system to inconsistencies between shape and motion introduced by retargeting motion from one person onto the shape of another? We used optical motion capture to record five pairs of male performers with large differences in body weight, while they pushed, lifted, and threw objects. Based on a set of 67 markers, we estimated both the kinematics of the actions as well as the performer's individual body shape. To obtain consistent and inconsistent stimuli, we created animated avatars by combining the shape and motion estimates from either a single performer or from different performers. In a virtual reality environment, observers rated the perceived weight or thrown distance of the objects. They were also asked to explicitly discriminate between consistent and hybrid stimuli. Observers were unable to accomplish the latter, but hybridization of shape and motion influenced their judgements of action outcome in systematic ways. Inconsistencies between shape and motion were assimilated into an altered perception of the action outcome.

Author(s): Kenny, Sophie and Mahmood, Naureen and Honda, Claire and Black, Michael J. and Troje, Nikolaus F.
Book Title: Proceedings of the ACM Symposium on Applied Perception (SAP’17)
Pages: 2:1--2:7
Year: 2017
Month: September

Department(s): Perceiving Systems
Bibtex Type: Conference Paper (conference)
Paper Type: Conference

DOI: https://doi.org/10.1145/3119881.3119891
Event Place: Cottbus, Germany

Links: pdf

BibTex

@conference{Kenny:SAP:2017,
  title = { Effects of animation retargeting on perceived action outcomes},
  author = {Kenny, Sophie and Mahmood, Naureen and Honda, Claire and Black, Michael J. and Troje, Nikolaus F.},
  booktitle = {Proceedings of the ACM Symposium on Applied Perception (SAP'17)},
  pages = {2:1--2:7},
  month = sep,
  year = {2017},
  month_numeric = {9}
}