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arXiv 2303.08498cs.CV

BEVHeight:一种基于视觉的路侧3D目标检测鲁棒框架

BEVHeight: A Robust Framework for Vision-based Roadside 3D Object Detection

State Key Laboratory of Automotive Safety and Energy, Tsinghua University(清华大学汽车安全与节能国家重点实验室);Autonomous Driving Lab, Alibaba Group(阿里巴巴集团自动驾驶实验室);Shenzhen Campus, Sun Yat-sen University(中山大学深圳校区);Center for Machine Learning Research, Peking University(北京大学机器学习研究中心)

Lei Yang, Kaicheng Yu, Tao Tang, Jun Li, Kun Yuan, Li Wang, Xinyu Zhang, Peng Chen

AI总结:

针对路侧摄像头场景中基于深度预测的视觉3D检测性能下降问题,本文提出BEVHeight框架,通过回归目标到地面的高度替代逐像素深度预测,实现距离无关的表示,在路侧3D检测基准上显著超越现有方法。

摘要:

尽管近期大多数自动驾驶系统专注于在自车传感器上开发感知方法,人们往往忽视了一种利用智能路侧摄像头将感知能力扩展到可视范围之外的替代方案。我们发现,当前最先进的以视觉为中心的鸟瞰图检测方法在路侧摄像头上的性能较差。这是因为这些方法主要关注恢复相对于摄像头中心的深度,而在路侧场景中,随着距离增加,车辆与地面之间的深度差迅速缩小。在本文中,我们提出了一种简单而有效的方法,称为BEVHeight,以解决这一问题。本质上,我们不预测逐像素深度,而是回归目标到地面的高度,从而获得一种与距离无关的公式化表示,以简化仅依赖摄像头的感知方法的优化过程。在流行的路侧摄像头3D检测基准上,我们的方法以显著优势超越了所有先前的以视觉为中心的方法。代码可在{\url{https://github.com/ADLab-AutoDrive/BEVHeight}}获取。

英文摘要:

While most recent autonomous driving system focuses on developing perception methods on ego-vehicle sensors, people tend to overlook an alternative approach to leverage intelligent roadside cameras to extend the perception ability beyond the visual range. We discover that the state-of-the-art vision-centric bird's eye view detection methods have inferior performances on roadside cameras. This is because these methods mainly focus on recovering the depth regarding the camera center, where the depth difference between the car and the ground quickly shrinks while the distance increases. In this paper, we propose a simple yet effective approach, dubbed BEVHeight, to address this issue. In essence, instead of predicting the pixel-wise depth, we regress the height to the ground to achieve a distance-agnostic formulation to ease the optimization process of camera-only perception methods. On popular 3D detection benchmarks of roadside cameras, our method surpasses all previous vision-centric methods by a significant margin. The code is available at {\url{https://github.com/ADLab-AutoDrive/BEVHeight}}.

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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