UV-M3TL: A Unified and Versatile Multimodal Multi-Task Learning Framework for Assistive Driving Perception

• URL: http://arxiv.org/abs/2602.01594v1
• Date: Mon, 02 Feb 2026 03:35:24 GMT
• Title: UV-M3TL: A Unified and Versatile Multimodal Multi-Task Learning Framework for Assistive Driving Perception
• Authors: Wenzhuo Liu, Qiannan Guo, Zhen Wang, Wenshuo Wang, Lei Yang, Yicheng Qiao, Lening Wang, Zhiwei Li, Chen Lv, Shanghang Zhang, Junqiang Xi, Huaping Liu,
• Abstract summary: We propose a framework to simultaneously recognize driver behavior, driver emotion, vehicle behavior, and traffic context.<n>Our framework incorporates two core components: dual-branch spatial channel multimodal embedding and adaptive feature-decoupled multi-task loss.<n>We evaluate our method on the AIDE dataset, and the experimental results demonstrate that UV-M3TL achieves state-of-the-art performance across all four tasks.
• Score: 71.19234323863314
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Advanced Driver Assistance Systems (ADAS) need to understand human driver behavior while perceiving their navigation context, but jointly learning these heterogeneous tasks would cause inter-task negative transfer and impair system performance. Here, we propose a Unified and Versatile Multimodal Multi-Task Learning (UV-M3TL) framework to simultaneously recognize driver behavior, driver emotion, vehicle behavior, and traffic context, while mitigating inter-task negative transfer. Our framework incorporates two core components: dual-branch spatial channel multimodal embedding (DB-SCME) and adaptive feature-decoupled multi-task loss (AFD-Loss). DB-SCME enhances cross-task knowledge transfer while mitigating task conflicts by employing a dual-branch structure to explicitly model salient task-shared and task-specific features. AFD-Loss improves the stability of joint optimization while guiding the model to learn diverse multi-task representations by introducing an adaptive weighting mechanism based on learning dynamics and feature decoupling constraints. We evaluate our method on the AIDE dataset, and the experimental results demonstrate that UV-M3TL achieves state-of-the-art performance across all four tasks. To further prove the versatility, we evaluate UV-M3TL on additional public multi-task perception benchmarks (BDD100K, CityScapes, NYUD-v2, and PASCAL-Context), where it consistently delivers strong performance across diverse task combinations, attaining state-of-the-art results on most tasks.

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