arXiv:2511.06226cs.AI2025-11

ROAR提升自动驾驶事故预测鲁棒性,应对传感器故障与数据不完整问题。

ROAR: Robust Accident Recognition and Anticipation for Autonomous Driving

  • 融合小波变换与自适应目标感知模块,增强对噪声数据的特征提取能力。
  • 在DAD、CCD、A3D三个数据集上平均精度(AP)优于基线模型,平均事故提前时间(mTTA)更优。
  • 适合部署于复杂交通环境中的自动驾驶系统,尤其适用于传感器易受损场景。

准确的事故预测对提升自动驾驶车辆安全性至关重要。然而,现有方法常假设理想条件,忽视了传感器故障、环境干扰和数据缺陷等现实挑战,这些因素会显著降低预测准确性。此外,先前模型未充分考虑不同车型间驾驶员行为差异及事故率变化。为此,本文提出ROAR,一种新型事故检测与预测方法。ROAR结合离散小波变换(DWT)、自适应目标感知模块和动态焦点损失,有效应对上述挑战。DWT能从噪声和不完整数据中提取特征;目标感知模块通过关注高风险车辆并建模交通参与者间的时空关系,提升预测性能;动态焦点损失则缓解正负样本类别不平衡问题。在三大常用数据集Dashcam Accident Dataset(DAD)、Car Crash Dataset(CCD)和AnAn Accident Detection(A3D)上的评估显示,该模型在平均精度(AP)和平均事故提前时间(mTTA)等关键指标上持续优于现有基线。结果表明,ROAR在真实复杂环境中具备强鲁棒性,尤其能有效应对传感器退化、环境噪声和数据分布失衡问题。本工作为复杂交通环境下可靠且精准的事故预测提供了可行方案。

原文摘要 · Abstract (English)

Accurate accident anticipation is essential for enhancing the safety of autonomous vehicles (AVs). However, existing methods often assume ideal conditions, overlooking challenges such as sensor failures, environmental disturbances, and data imperfections, which can significantly degrade prediction accuracy. Additionally, previous models have not adequately addressed the considerable variability in driver behavior and accident rates across different vehicle types. To overcome these limitations, this study introduces ROAR, a novel approach for accident detection and prediction. ROAR combines Discrete Wavelet Transform (DWT), a self adaptive object aware module, and dynamic focal loss to tackle these challenges. The DWT effectively extracts features from noisy and incomplete data, while the object aware module improves accident prediction by focusing on high-risk vehicles and modeling the spatial temporal relationships among traffic agents. Moreover, dynamic focal loss mitigates the impact of class imbalance between positive and negative samples. Evaluated on three widely used datasets, Dashcam Accident Dataset (DAD), Car Crash Dataset (CCD), and AnAn Accident Detection (A3D), our model consistently outperforms existing baselines in key metrics such as Average Precision (AP) and mean Time to Accident (mTTA). These results demonstrate the model's robustness in real-world conditions, particularly in handling sensor degradation, environmental noise, and imbalanced data distributions. This work offers a promising solution for reliable and accurate accident anticipation in complex traffic environments.

事故预测自动驾驶鲁棒性小波变换

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