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REFA: Real-time Egocentric Facial Animations for Virtual Reality

Published: January 7, 2026 | arXiv ID: 2601.03507v1

By: Qiang Zhang , Tong Xiao , Haroun Habeeb and more

Potential Business Impact:

Lets you control virtual characters' faces easily.

Business Areas:
Facial Recognition Data and Analytics, Software

We present a novel system for real-time tracking of facial expressions using egocentric views captured from a set of infrared cameras embedded in a virtual reality (VR) headset. Our technology facilitates any user to accurately drive the facial expressions of virtual characters in a non-intrusive manner and without the need of a lengthy calibration step. At the core of our system is a distillation based approach to train a machine learning model on heterogeneous data and labels coming form multiple sources, \eg synthetic and real images. As part of our dataset, we collected 18k diverse subjects using a lightweight capture setup consisting of a mobile phone and a custom VR headset with extra cameras. To process this data, we developed a robust differentiable rendering pipeline enabling us to automatically extract facial expression labels. Our system opens up new avenues for communication and expression in virtual environments, with applications in video conferencing, gaming, entertainment, and remote collaboration.

Page Count
10 pages

Category
Computer Science:
CV and Pattern Recognition