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arXiv 2009.02622cs.RO
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一种适用于大规模公路环境的鲁棒激光-惯性测距和测绘方法

A Robust Laser-Inertial Odometry and Mapping Method for Large-Scale Highway Environments

Faculty of Robot Science and Engineering, Northeastern University(东北大学机器人科学与工程学院);Robotics Institute, Carnegie Mellon University(卡内基梅隆大学机器人研究所)

Shibo Zhao, Zheng Fang, HaoLai Li, Sebastian Scherer

摘要:

在本文中,我们提出了一种新的激光惯性测距和映射方法,以实现实时,低漂移和强大的姿态估计在大规模的公路环境。该方法主要由扫描预处理模块、动态目标检测模块、激光-惯性测距模块和激光测绘模块四个模块组成。扫描预处理模块使用惯性测量来补偿每次激光扫描的运动失真。然后,动态目标检测模块用于通过应用CNN分割网络从每次激光扫描中检测和去除动态对象。激光惯性测距模块在获得无运动物体的无畸变点云后,采用误差状态卡尔曼滤波器对激光和IMU数据进行融合,输出高频粗位姿估计。最后,激光映射模块执行精细处理步骤,并使用“帧到模型”扫描匹配策略来创建静态全局映射。我们使用KITTI数据集和真实的高速公路场景数据集,将我们的方法与两种最先进的方法LOAM和SuMa的性能进行比较。实验结果表明,我们的方法在真实的高速公路环境中的表现优于国家的最先进的方法,并达到竞争力的准确性KITTI数据集。

英文摘要:

In this paper, we propose a novel laser-inertial odometry and mapping method to achieve real-time, low-drift and robust pose estimation in large-scale highway environments. The proposed method is mainly composed of four sequential modules, namely scan pre-processing module, dynamic object detection module, laser-inertial odometry module and laser mapping module. Scan pre-processing module uses inertial measurements to compensate the motion distortion of each laser scan. Then, the dynamic object detection module is used to detect and remove dynamic objects from each laser scan by applying CNN segmentation network. After obtaining the undistorted point cloud without moving objects, the laser inertial odometry module uses an Error State Kalman Filter to fuse the data of laser and IMU and output the coarse pose estimation at high frequency. Finally, the laser mapping module performs a fine processing step and the "Frame-to-Model" scan matching strategy is used to create a static global map. We compare the performance of our method with two state-ofthe-art methods, LOAM and SuMa, using KITTI dataset and real highway scene dataset. Experiment results show that our method performs better than the state-of-the-art methods in real highway environments and achieves competitive accuracy on the KITTI dataset.

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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