arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2203.02634cs.CVcs.AIcs.LGcs.RO
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基于半监督学习的自动驾驶重要目标识别

Important Object Identification with Semi-Supervised Learning for Autonomous Driving

Honda Research Institute(本田研究院);Stanford University(斯坦福大学);University of California, Berkeley(加州大学伯克利分校)

Jiachen Li, Haiming Gang, Hengbo Ma, Masayoshi Tomizuka, Chiho Choi

摘要:

场景中重要对象的准确识别是智能代理(例如,自动驾驶车辆)在复杂和动态环境中导航。大多数现有方法试图采用注意力机制来经由各种任务(例如,轨迹预测),其不强制对重要性估计的直接监督。相比之下,我们以明确的方式处理这个任务,并将其表述为二元分类(“重要”或“不重要”)问题。我们提出了一种新的方法,重要的对象识别在以自我为中心的驾驶场景中的对象的关系推理。此外,由于人类的注释是有限的和昂贵的获得,我们提出了一个半监督学习管道,使模型能够学习无限的未标记的数据。此外,我们建议利用自我车辆行为预测的辅助任务,以进一步提高重要性估计的准确性。所提出的方法进行评估的公共自我中心驾驶数据集(H3D)收集在复杂的交通场景。详细的烧蚀研究进行,以证明每个模型组件和培训策略的有效性。我们的方法也大大优于基于规则的基线。

英文摘要:

Accurate identification of important objects in the scene is a prerequisite for safe and high-quality decision making and motion planning of intelligent agents (e.g., autonomous vehicles) that navigate in complex and dynamic environments. Most existing approaches attempt to employ attention mechanisms to learn importance weights associated with each object indirectly via various tasks (e.g., trajectory prediction), which do not enforce direct supervision on the importance estimation. In contrast, we tackle this task in an explicit way and formulate it as a binary classification ("important" or "unimportant") problem. We propose a novel approach for important object identification in egocentric driving scenarios with relational reasoning on the objects in the scene. Besides, since human annotations are limited and expensive to obtain, we present a semi-supervised learning pipeline to enable the model to learn from unlimited unlabeled data. Moreover, we propose to leverage the auxiliary tasks of ego vehicle behavior prediction to further improve the accuracy of importance estimation. The proposed approach is evaluated on a public egocentric driving dataset (H3D) collected in complex traffic scenarios. A detailed ablative study is conducted to demonstrate the effectiveness of each model component and the training strategy. Our approach also outperforms rule-based baselines by a large margin.

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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