通过多传感器融合纠正距离误判,提升自动驾驶抗干扰能力。
RACF: A Resilient Autonomous Car Framework with Object Distance Correction

- 融合深度相机、激光雷达与物理运动模型实现感知冗余
- 在强干扰下距离误差降低35%,停车合规性与制动延迟优化
- 适合高安全要求的自动驾驶系统实时防御场景
自动驾驶车辆在安全关键应用中日益普及,但感知故障或网络物理攻击可能导致操作不安全,造成人员伤亡和严重物理损害。可靠的实时感知对安全运行和公众接受至关重要。例如,基于视觉的距离估计易受环境退化和对抗性扰动影响,现有防御手段通常反应迟缓,无法及时缓解对安全运行的影响。本文提出一种鲁棒自动驾驶框架(RACF),集成物体距离校正算法(ODCA),通过深度相机、激光雷达与物理运动学模型之间的冗余与多样性提升感知层鲁棒性。当深度相机测得的障碍物距离出现不一致时,跨传感器门控机制将激活校正算法进行修正。我们在Quanser QCar 2平台上搭建测试平台,验证了该框架性能。结果表明,在强干扰条件下,该框架可实现最高35%的均方根误差(RMSE)降低,同时提升停车合规性和制动响应速度,并支持实时运行。这展示了一种实用且轻量的鲁棒感知方案,适用于安全关键型自动驾驶系统。
原文摘要 · Abstract (English)
Autonomous vehicles are increasingly deployed in safety-critical applications, where sensing failures or cyberphysical attacks can lead to unsafe operations resulting in human loss and/or severe physical damages. Reliable real-time perception is therefore critically important for their safe operations and acceptability. For example, vision-based distance estimation is vulnerable to environmental degradation and adversarial perturbations, and existing defenses are often reactive and too slow to promptly mitigate their impacts on safe operations. We present a Resilient Autonomous Car Framework (RACF) that incorporates an Object Distance Correction Algorithm (ODCA) to improve perception-layer robustness through redundancy and diversity across a depth camera, LiDAR, and physics-based kinematics. Within this framework, when obstacle distance estimation produced by depth camera is inconsistent, a cross-sensor gate activates the correction algorithm to fix the detected inconsistency. We have experiment with the proposed resilient car framework and evaluate its performance on a testbed implemented using the Quanser QCar 2 platform. The presented framework achieved up to 35% RMSE reduction under strong corruption and improves stop compliance and braking latency, while operating in real time. These results demonstrate a practical and lightweight approach to resilient perception for safety-critical autonomous driving
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