arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2403.06166cs.CVcs.RO

面向自动驾驶高效精准3D目标检测的跨簇移位方法

Cross-Cluster Shifting for Efficient and Effective 3D Object Detection in Autonomous Driving

HKUST(香港科技大学);MBZUAI(穆罕默德·本·扎耶德人工智能大学)

Zhili Chen, Kien T. Pham, Maosheng Ye, Zhiqiang Shen, Qifeng Chen

AI总结:

针对传统基于点的3D目标检测器下采样会损失非局部信息的问题,提出带跨簇移位操作的Shift-SSD模型,在多个自动驾驶数据集上实现精度与效率的SOTA表现。

摘要:

我们提出了一种新型基于点的3D检测器模型Shift-SSD,用于自动驾驶中的精准3D目标检测。传统基于点的3D目标检测器通常采用依赖点渐进式下采样的架构,该方法虽能有效降低计算需求并增大感受野,但会损害精准3D目标检测所需的关键非局部信息的保留,在复杂驾驶场景中尤为明显。为解决这一问题,我们提出了新颖的跨簇移位(Cross-Cluster Shifting)操作,通过高效建模长程依赖关系释放基于点的检测器的表征能力,且仅带来可忽略的额外开销。具体而言,跨簇移位操作通过移位来自相邻簇的部分通道改进传统设计,实现与非局部区域更丰富的交互,从而扩大簇的感受野。我们在KITTI、Waymo和nuScenes数据集上开展了大量实验,结果表明Shift-SSD在检测精度和运行效率上均达到了当前最优(state-of-the-art)性能。

英文摘要:

We present a new 3D point-based detector model, named Shift-SSD, for precise 3D object detection in autonomous driving. Traditional point-based 3D object detectors often employ architectures that rely on a progressive downsampling of points. While this method effectively reduces computational demands and increases receptive fields, it will compromise the preservation of crucial non-local information for accurate 3D object detection, especially in the complex driving scenarios. To address this, we introduce an intriguing Cross-Cluster Shifting operation to unleash the representation capacity of the point-based detector by efficiently modeling longer-range inter-dependency while including only a negligible overhead. Concretely, the Cross-Cluster Shifting operation enhances the conventional design by shifting partial channels from neighboring clusters, which enables richer interaction with non-local regions and thus enlarges the receptive field of clusters. We conduct extensive experiments on the KITTI, Waymo, and nuScenes datasets, and the results demonstrate the state-of-the-art performance of Shift-SSD in both detection accuracy and runtime efficiency.

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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