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Non-isomorphic Interaction Techniques for Controlling Avatar Facial Expressions in VR

Marc Baloup 1, 2 Thomas Pietrzak 1, 3, 2 Martin Hachet 4 Géry Casiez 1, 3, 2, 5 
1 LOKI - Technology and knowledge for interaction
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189
4 Potioc - Popular interaction with 3d content
LaBRI - Laboratoire Bordelais de Recherche en Informatique, Inria Bordeaux - Sud-Ouest
Abstract : The control of an avatar’s facial expressions in virtual reality is mainly based on the automated recognition and transposition of the user’s facial expressions. These isomorphic techniques are limited to what users can convey with their own face and have recognition issues. To overcome these limitations, non-isomorphic techniques rely on interaction techniques using input devices to control the avatar’s facial expressions. Such techniques need to be designed to quickly and easily select and control an expression, and not disrupt a main task such as talking. We present the design of a set of new non- isomorphic interaction techniques for controlling an avatar facial expression in VR using a standard VR controller. These techniques have been evaluated through two controlled experiments to help designing an interaction technique combining the strengths of each approach. This technique was evaluated in a final ecological study showing it can be used in contexts such as social applications.
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Submitted on : Monday, October 4, 2021 - 3:17:01 PM
Last modification on : Tuesday, November 22, 2022 - 2:26:16 PM
Long-term archiving on: : Wednesday, January 5, 2022 - 7:21:42 PM




Marc Baloup, Thomas Pietrzak, Martin Hachet, Géry Casiez. Non-isomorphic Interaction Techniques for Controlling Avatar Facial Expressions in VR. Proceedings of the ACM Symposium on Virtual Reality Software and Technology (VRST 2021), Dec 2021, Osaka, Japan. ⟨10.1145/3489849.3489867⟩. ⟨hal-03364271⟩



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