arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2407.04115cs.RO
收藏

基于LiDAR的动态环境中实时目标检测与跟踪

LiDAR-based Real-Time Object Detection and Tracking in Dynamic Environments

Polytechnique Montreal(蒙特利尔理工学院)

Wenqiang Du, Giovanni Beltrame

AI总结:

本文提出一种仅用LiDAR数据的实时动态目标检测与跟踪系统,通过提取低频特征点加速聚类分析,并结合基于强度的自运动估计与滑动窗口技术,实现了88.7%检测准确率和89.1%召回率,且对里程计漂移具有较强鲁棒性。

摘要:

在动态环境中,实时检测和跟踪移动目标的能力对于自主机器人安全有效地导航至关重要。传统的动态目标检测方法依赖高精度里程计和地图来检测和跟踪移动目标。然而,这些方法不适合在周围环境不断变化的动态环境中长期运行。为了解决这一问题,我们提出了一种仅使用LiDAR数据实时检测和跟踪动态目标的新系统。通过强调从LiDAR数据中提取低频分量作为前景目标的特征点,我们的方法显著减少了目标聚类和运动分析所需的时间。此外,我们开发了一种跟踪方法,该方法采用基于强度的自运动估计以及滑动窗口技术来评估目标运动。这使得能够精确识别移动目标,并增强了系统对里程计漂移的鲁棒性。我们的实验表明,该系统能够实时检测和跟踪动态目标,平均检测准确率为88.7%,召回率为89.1%。此外,我们的系统展示了对通常与仅前端LiDAR里程计相关的长时间漂移的抵抗能力。所有源代码、标注数据集和标注工具均可在以下地址获取:https://github.com/MISTLab/lidar_dynamic_objects_detection.git

英文摘要:

In dynamic environments, the ability to detect and track moving objects in real-time is crucial for autonomous robots to navigate safely and effectively. Traditional methods for dynamic object detection rely on high accuracy odometry and maps to detect and track moving objects. However, these methods are not suitable for long-term operation in dynamic environments where the surrounding environment is constantly changing. In order to solve this problem, we propose a novel system for detecting and tracking dynamic objects in real-time using only LiDAR data. By emphasizing the extraction of low-frequency components from LiDAR data as feature points for foreground objects, our method significantly reduces the time required for object clustering and movement analysis. Additionally, we have developed a tracking approach that employs intensity-based ego-motion estimation along with a sliding window technique to assess object movements. This enables the precise identification of moving objects and enhances the system's resilience to odometry drift. Our experiments show that this system can detect and track dynamic objects in real-time with an average detection accuracy of 88.7\% and a recall rate of 89.1\%. Furthermore, our system demonstrates resilience against the prolonged drift typically associated with front-end only LiDAR odometry. All of the source code, labeled dataset, and the annotation tool are available at: https://github.com/MISTLab/lidar_dynamic_objects_detection.git

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。

↑