Towards the generation of synchronized and believable non-verbal facial behaviors of a talking virtual agent

• URL: http://arxiv.org/abs/2311.12804v1
• Date: Fri, 15 Sep 2023 07:25:36 GMT
• Title: Towards the generation of synchronized and believable non-verbal facial behaviors of a talking virtual agent
• Authors: Alice Delbosc (TALEP, LIS, AMU), Magalie Ochs (LIS, AMU, TALEP), Nicolas Sabouret (LISN), Brian Ravenet (LISN), St\'ephane Ayache (AMU, LIS, QARMA)
• Abstract summary: This paper introduces a new model to generate rhythmically relevant non-verbal facial behaviors for virtual agents while they speak. We find that training the model with two different sets of data, instead of one, did not necessarily improve its performance. We also show that employing an adversarial model, in which fabricated fake examples are introduced during the training phase, increases the perception of synchronization with speech.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This paper introduces a new model to generate rhythmically relevant non-verbal facial behaviors for virtual agents while they speak. The model demonstrates perceived performance comparable to behaviors directly extracted from the data and replayed on a virtual agent, in terms of synchronization with speech and believability. Interestingly, we found that training the model with two different sets of data, instead of one, did not necessarily improve its performance. The expressiveness of the people in the dataset and the shooting conditions are key elements. We also show that employing an adversarial model, in which fabricated fake examples are introduced during the training phase, increases the perception of synchronization with speech. A collection of videos demonstrating the results and code can be accessed at: https://github.com/aldelb/non_verbal_facial_animation.

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