论文标题

征服鬼魂:信息可靠性表示和端到端的关系学习

Conquering Ghosts: Relation Learning for Information Reliability Representation and End-to-End Robust Navigation

论文作者

Jin, Kefan, Han, Xingyao

论文摘要

在实际的自动驾驶应用中,环境干扰,例如传感器数据噪声,各种照明条件,挑战性风化和外部对抗扰动是不可避免的。现有的研究和测试表明,它们可以严重影响车辆的感知能力和性能,主要问题之一是假阳性检测,即不存在的幽灵对象或在错误的位置(例如不存在的车辆)。传统的导航方法往往避免为安全而避免所有检测到的物体,但是,避免幽灵物体可能会导致车辆陷入更危险的情况,例如在高速公路上突然中断。考虑到各种干扰类型,很难在感知方面解决这个问题。潜在的解决方案是通过整个场景之间的关系学习来检测鬼魂,并开发一个集成的端到端导航系统。我们的基本逻辑是,现场所有车辆的行为都受其邻居的影响,而普通车辆以逻辑方式行为,而幽灵车则没有。通过学习周围车辆之间的时空关系,可以为每个检测到的车辆学习信息可靠性表示,然后开发一个机器人导航网络。与现有作品相反,我们鼓励网络学习如何代表可靠性以及如何与不确定性汇总所有信息,从而提高效率和概括性。据《最好的作者知识》,本文提供了第一份关于使用图形关系学习在幽灵车队存在下端到端稳健导航的第一项工作。在Carla平台中的仿真结果证明了在各种情况下所提出的方法的可行性和有效性。

Environmental disturbances, such as sensor data noises, various lighting conditions, challenging weathers and external adversarial perturbations, are inevitable in real self-driving applications. Existing researches and testings have shown that they can severely influence the vehicles perception ability and performance, one of the main issue is the false positive detection, i.e., the ghost object which is not real existed or occurs in the wrong position (such as a non-existent vehicle). Traditional navigation methods tend to avoid every detected objects for safety, however, avoiding a ghost object may lead the vehicle into a even more dangerous situation, such as a sudden break on the highway. Considering the various disturbance types, it is difficult to address this issue at the perceptual aspect. A potential solution is to detect the ghost through relation learning among the whole scenario and develop an integrated end-to-end navigation system. Our underlying logic is that the behavior of all vehicles in the scene is influenced by their neighbors, and normal vehicles behave in a logical way, while ghost vehicles do not. By learning the spatio-temporal relation among surrounding vehicles, an information reliability representation is learned for each detected vehicle and then a robot navigation network is developed. In contrast to existing works, we encourage the network to learn how to represent the reliability and how to aggregate all the information with uncertainties by itself, thus increasing the efficiency and generalizability. To the best of the authors knowledge, this paper provides the first work on using graph relation learning to achieve end-to-end robust navigation in the presence of ghost vehicles. Simulation results in the CARLA platform demonstrate the feasibility and effectiveness of the proposed method in various scenarios.

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