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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2004.12165cs.CV
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基于CNN的三维雷达立方体道路使用者检测

CNN based Road User Detection using the 3D Radar Cube

Delft University of Technology(代尔夫特理工大学)

Andras Palffy, Jiaao Dong, Julian F. P. Kooij, Dariu M. Gavrila

摘要:

这封信提出了一种新的基于雷达的,单帧,多类检测方法移动的道路用户(行人,骑自行车的人,汽车),它利用低级别的雷达立方体数据。该方法提供了雷达目标级和目标级的类信息。雷达目标被单独分类后,扩展的目标特征与裁剪块的三维雷达立方体周围的位置,从而捕捉运动部件的运动在当地的速度分布。一个卷积神经网络(CNN)提出了这个分类步骤。然后,通过聚类步骤生成目标建议,该步骤不仅考虑雷达目标的位置和速度,还考虑它们的计算类得分。在真实数据集上的实验中,我们证明了我们的方法在目标和对象方面都优于最先进的方法,平均达到0.70(基线:0.68)目标和0.56(基线:0.48)对象的F1分数。此外,我们检查消融研究中使用的功能的重要性。

英文摘要:

This letter presents a novel radar based, single-frame, multi-class detection method for moving road users (pedestrian, cyclist, car), which utilizes low-level radar cube data. The method provides class information both on the radar target- and object-level. Radar targets are classified individually after extending the target features with a cropped block of the 3D radar cube around their positions, thereby capturing the motion of moving parts in the local velocity distribution. A Convolutional Neural Network (CNN) is proposed for this classification step. Afterwards, object proposals are generated with a clustering step, which not only considers the radar targets' positions and velocities, but their calculated class scores as well. In experiments on a real-life dataset we demonstrate that our method outperforms the state-of-the-art methods both target- and object-wise by reaching an average of 0.70 (baseline: 0.68) target-wise and 0.56 (baseline: 0.48) object-wise F1 score. Furthermore, we examine the importance of the used features in an ablation study.

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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