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LiteFat: Lightweight Spatio-Temporal Graph Learning for Real-Time Driver Fatigue Detection
Created by
Haebom
Author
Jing Ren, Suyu Ma, Hong Jia, Xiwei Xu, Ivan Lee, Haytham Fayek, Xiaodong Li, Feng Xia
Outline
This paper proposes LiteFat, a lightweight spatiotemporal graph learning model for driver fatigue detection systems. Existing deep learning-based fatigue detection models struggle to be applied to resource-constrained embedded robotic devices (e.g., autonomous vehicles) due to their high computational complexity and latency. LiteFat addresses this issue by transforming streaming video data into a spatiotemporal graph (STG) through facial landmark detection, thereby focusing on key movement patterns and reducing unnecessary data processing. MobileNet extracts facial features and generates a feature matrix for the STG, and a lightweight spatiotemporal graph neural network identifies fatigue signs with minimal processing and low latency. Experimental results on benchmark datasets demonstrate that LiteFat outperforms existing state-of-the-art methods while significantly reducing computational complexity and latency.
Takeaways, Limitations
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Takeaways:
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Enabling real-time driver fatigue detection in resource-constrained embedded systems.
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Suitable for real-time applications due to lower computational complexity and latency compared to existing deep learning models.
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Maintains high accuracy despite being a lightweight model.
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Limitations:
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The performance of the proposed model may depend on the benchmark dataset used. Further validation is needed under various conditions and datasets.
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Further research is needed on robustness to various variables in real driving environments (lighting, angle, individual differences, etc.).
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The performance of facial feature extraction using MobileNet can impact overall system performance. Research is needed to develop more efficient feature extraction methods.