用视觉语言模型定制自动驾驶安全训练课程,自动发现并补足车辆短板。
CurricuVLM: Towards Safe Autonomous Driving via Personalized Safety-Critical Curriculum Learning with Vision-Language Models
- 用视觉语言模型分析驾驶行为,识别安全弱点并生成针对性训练场景。
- 在Waymo数据集上超越现有方法,安全与导航成功率均提升,尤其在极端场景表现更优。
- 可适配多种强化学习算法,适合研究自动驾驶安全与个性化训练的团队。
确保自动驾驶系统的安全性仍是重大挑战,尤其在应对罕见但可能造成灾难性后果的安全关键场景时。尽管已有研究尝试生成用于测试的高风险场景,但如何将这些场景有效融入策略学习以提升安全性仍缺乏探索。此外,针对自动驾驶车辆行为模式演变和性能瓶颈动态调整训练课程的研究也极为有限。为此,我们提出CurricuVLM,一种利用视觉语言模型(VLMs)实现个性化课程学习的框架。该方法通过多模态理解能力分析车辆行为,识别性能缺陷,并动态生成定制化训练场景以适应课程调整。基于带有叙事描述的不安全驾驶场景分析,CurricuVLM进行深度推理,评估车辆能力并定位关键行为模式。随后合成针对性训练场景,实现高效个性化课程学习。在Waymo Open Motion Dataset上的大量实验表明,CurricuVLM在常规及安全关键场景下均优于当前最优基线,在导航成功率、驾驶效率和安全指标方面表现更佳。进一步分析显示,CurricuVLM具有通用性,可与多种强化学习算法结合,增强自动驾驶系统。代码与演示视频见:https://zihaosheng.github.io/CurricuVLM/。
原文摘要 · Abstract (English)
Ensuring safety in autonomous driving systems remains a critical challenge, particularly in handling rare but potentially catastrophic safety-critical scenarios. While existing research has explored generating safety-critical scenarios for autonomous vehicle (AV) testing, there is limited work on effectively incorporating these scenarios into policy learning to enhance safety. Furthermore, developing training curricula that adapt to an AV's evolving behavioral patterns and performance bottlenecks remains largely unexplored. To address these challenges, we propose CurricuVLM, a novel framework that leverages Vision-Language Models (VLMs) to enable personalized curriculum learning for autonomous driving agents. Our approach uniquely exploits VLMs' multimodal understanding capabilities to analyze agent behavior, identify performance weaknesses, and dynamically generate tailored training scenarios for curriculum adaptation. Through comprehensive analysis of unsafe driving situations with narrative descriptions, CurricuVLM performs in-depth reasoning to evaluate the AV's capabilities and identify critical behavioral patterns. The framework then synthesizes customized training scenarios targeting these identified limitations, enabling effective and personalized curriculum learning. Extensive experiments on the Waymo Open Motion Dataset show that CurricuVLM outperforms state-of-the-art baselines across both regular and safety-critical scenarios, achieving superior performance in terms of navigation success, driving efficiency, and safety metrics. Further analysis reveals that CurricuVLM serves as a general approach that can be integrated with various RL algorithms to enhance autonomous driving systems. The code and demo video are available at: https://zihaosheng.github.io/CurricuVLM/.
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