Diffusion-Based Planning for Autonomous Driving with Flexible Guidance

• URL: http://arxiv.org/abs/2501.15564v2
• Date: Sun, 09 Feb 2025 16:37:09 GMT
• Title: Diffusion-Based Planning for Autonomous Driving with Flexible Guidance
• Authors: Yinan Zheng, Ruiming Liang, Kexin Zheng, Jinliang Zheng, Liyuan Mao, Jianxiong Li, Weihao Gu, Rui Ai, Shengbo Eben Li, Xianyuan Zhan, Jingjing Liu,
• Abstract summary: We propose a novel transformer-based Diffusion Planner for closed-loop planning. Our model supports joint modeling of both prediction and planning tasks. It achieves state-of-the-art closed-loop performance with robust transferability in diverse driving styles.
• Score: 19.204115959760788
• License:
• Abstract: Achieving human-like driving behaviors in complex open-world environments is a critical challenge in autonomous driving. Contemporary learning-based planning approaches such as imitation learning methods often struggle to balance competing objectives and lack of safety assurance,due to limited adaptability and inadequacy in learning complex multi-modal behaviors commonly exhibited in human planning, not to mention their strong reliance on the fallback strategy with predefined rules. We propose a novel transformer-based Diffusion Planner for closed-loop planning, which can effectively model multi-modal driving behavior and ensure trajectory quality without any rule-based refinement. Our model supports joint modeling of both prediction and planning tasks under the same architecture, enabling cooperative behaviors between vehicles. Moreover, by learning the gradient of the trajectory score function and employing a flexible classifier guidance mechanism, Diffusion Planner effectively achieves safe and adaptable planning behaviors. Evaluations on the large-scale real-world autonomous planning benchmark nuPlan and our newly collected 200-hour delivery-vehicle driving dataset demonstrate that Diffusion Planner achieves state-of-the-art closed-loop performance with robust transferability in diverse driving styles.

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