OpenFace 3.0: A Lightweight Multitask System for Comprehensive Facial Behavior Analysis
This provides an open-source toolkit for researchers and developers in vision, multimodal interaction, robotics, and affective computing, though it is incremental as it builds upon prior systems.
The paper tackles the problem of comprehensive facial behavior analysis by introducing OpenFace 3.0, a lightweight multitask system that improves prediction performance, inference speed, and memory efficiency over similar toolkits and rivals state-of-the-art models, operating in real-time without specialized hardware.
In recent years, there has been increasing interest in automatic facial behavior analysis systems from computing communities such as vision, multimodal interaction, robotics, and affective computing. Building upon the widespread utility of prior open-source facial analysis systems, we introduce OpenFace 3.0, an open-source toolkit capable of facial landmark detection, facial action unit detection, eye-gaze estimation, and facial emotion recognition. OpenFace 3.0 contributes a lightweight unified model for facial analysis, trained with a multi-task architecture across diverse populations, head poses, lighting conditions, video resolutions, and facial analysis tasks. By leveraging the benefits of parameter sharing through a unified model and training paradigm, OpenFace 3.0 exhibits improvements in prediction performance, inference speed, and memory efficiency over similar toolkits and rivals state-of-the-art models. OpenFace 3.0 can be installed and run with a single line of code and operate in real-time without specialized hardware. OpenFace 3.0 code for training models and running the system is freely available for research purposes and supports contributions from the community.