高效动态激光里程计,实现实时环境感知与物体追踪。
Efficient Dynamic LiDAR Odometry for Mobile Robots with Structured Point Clouds
- 复用里程计模块数据,结合范围图像分割与残差启发式方法
- 检测精度接近先进方法,仅增加14毫秒计算开销
- 适合计算资源有限的搜救机器人,支持真实场景部署
针对城市搜救场景中的移动机器人,我们提出一种实时动态激光里程计流程。现有方法常依赖预训练网络或计算量大的体素地图,为提升在资源受限设备上的效率,本方法在里程计与检测模块间复用数据。通过范围图像分割技术与新型残差启发式策略,在点云建图前区分动态与静态物体。该方法在复杂动态环境中实现鲁棒目标跟踪与高精度地图构建,即使对非刚性物体如奔跑的人,也能在不进行点云下采样的前提下实现逐点级准确检测,避免信息损失。在仿真与真实数据上的评估表明,相比最先进体素方法,本方案在处理时间上大幅降低,仅额外增加14毫秒用于动态物体检测与追踪。代码与新采集的真实世界数据集已开源,供后续研究使用。
原文摘要 · Abstract (English)
We propose a real-time dynamic LiDAR odometry pipeline for mobile robots in Urban Search and Rescue (USAR) scenarios. Existing approaches to dynamic object detection often rely on pretrained learned networks or computationally expensive volumetric maps. To enhance efficiency on computationally limited robots, we reuse data between the odometry and detection module. Utilizing a range image segmentation technique and a novel residual-based heuristic, our method distinguishes dynamic from static objects before integrating them into the point cloud map. The approach demonstrates robust object tracking and improved map accuracy in environments with numerous dynamic objects. Even highly non-rigid objects, such as running humans, are accurately detected at point level without prior downsampling of the point cloud and hence, without loss of information. Evaluation on simulated and real-world data validates its computational efficiency. Compared to a state-of-the-art volumetric method, our approach shows comparable detection performance at a fraction of the processing time, adding only 14 ms to the odometry module for dynamic object detection and tracking. The implementation and a new real-world dataset are available as open-source for further research.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。