arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2602.03376cs.ROcs.CV

PlanTRansformer: 一种结合目标条件变换器的统一预测与规划

PlanTRansformer: Unified Prediction and Planning with Goal-conditioned Transformer

Department of Electrical Engineering and Information Technology, Intelligent Vehicles Lab (IVL), Munich University of Applied Science(电气工程与信息科技系,智能车辆实验室(IVL),慕尼黑应用科学大学)

Constantin Selzer, Fabina B. Flohr

AI总结:

PlanTRansformer通过整合目标条件预测、动态可行性等技术,提升自动驾驶中的预测与规划性能。

摘要:

在自动驾驶中,轨迹预测和规划是基础但相互分离的组件。预测模型在未知意图下预测周围代理的运动,产生多模分布;而规划假设已知的自我目标并生成确定性轨迹。这种不匹配导致了一个关键瓶颈:预测缺乏对代理意图的监督,而规划需要这一信息。现有的预测模型尽管在基准性能上表现强劲,但往往与规划约束如避障和动态可行性脱节。我们引入了Plan TRansformer(PTR),一种统一的高斯混合变换器框架,整合了目标条件预测、动态可行性、交互意识和车道级拓扑推理。一种教师-学生训练策略在训练过程中逐步屏蔽周围代理的指令,以与推理条件下的情况对齐,其中代理意图不可用。PTR在边际/联合mAP上相比基线运动变换器(MTR)分别提高了4.3%/3.5%,在5秒时间范围内相比GameFormer减少了15.5%的规划误差。架构无关的设计使该方法能够应用于各种基于变换器的预测模型。项目网站:https://github.com/SelzerConst/PlanTRansformer

英文摘要:

Trajectory prediction and planning are fundamental yet disconnected components in autonomous driving. Prediction models forecast surrounding agent motion under unknown intentions, producing multimodal distributions, while planning assumes known ego objectives and generates deterministic trajectories. This mismatch creates a critical bottleneck: prediction lacks supervision for agent intentions, while planning requires this information. Existing prediction models, despite strong benchmarking performance, often remain disconnected from planning constraints such as collision avoidance and dynamic feasibility. We introduce Plan TRansformer (PTR), a unified Gaussian Mixture Transformer framework integrating goal-conditioned prediction, dynamic feasibility, interaction awareness, and lane-level topology reasoning. A teacher-student training strategy progressively masks surrounding agent commands during training to align with inference conditions where agent intentions are unavailable. PTR achieves 4.3%/3.5% improvement in marginal/joint mAP compared to the baseline Motion Transformer (MTR) and 15.5% planning error reduction at 5s horizon compared to GameFormer. The architecture-agnostic design enables application to diverse Transformer-based prediction models. Project Website: https://github.com/SelzerConst/PlanTRansformer

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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