机械工程学报 ›› 2024, Vol. 60 ›› Issue (6): 296-305.doi: 10.3901/JME.2024.06.296
郭翼彪1, 周云水1, 黄圣杰1, 刘硕1, 谢国涛1,2, 秦晓辉1,2
收稿日期:2023-05-08
修回日期:2023-11-28
出版日期:2024-03-20
发布日期:2024-06-07
通讯作者:
秦晓辉,男,1988年出生,博士,副研究员。主要研究方向为智能汽车,面向自动驾驶的SLAM。E-mail:qxh8880507@163.com
作者简介:郭翼彪,男,1998年出生。主要研究方向为视觉SLAM、多传感器融合的SLAM。E-mail:biaoyg2580@163.com
基金资助:GUO Yibiao1, ZHOU Yunshui1, HUANG Shengjie1, LIU Shuo1, XIE Guotao1,2, QIN Xiaohui1,2
Received:2023-05-08
Revised:2023-11-28
Online:2024-03-20
Published:2024-06-07
摘要: 现阶段室内等结构化环境中的机器人定位技术备受关注,视觉-惯性传感器融合的同时定位与建图(visual-inertial simultaneous localization and mapping,VI-SLAM)系统凭借其成本低、体积小、互补性高等优点得到广泛应用。针对现有VI-SLAM系统中相机和IMU的旋转外参在线初始化困难、室内环境中的结构化特征利用不充分等问题,提出一种结构化环境下基于点线特征的双目VI-SLAM系统。该系统基于结构化环境中的线特征,采用先静止、后运动的两步法,在线初始化相机和IMU之间的旋转外参,并通过融合视觉提供的点、线特征的重投影误差约束和IMU提供的预积分约束,共同优化定位系统的状态量。在EuRoC室内无人机数据集和真实地下停车场中的试验表明,两步初始化旋转外参算法有效且准确,可为优化环节提供良好的初始值,通过与多种视觉定位算法进行对比,验证了该系统拥有更高的定位精度。
中图分类号:
郭翼彪, 周云水, 黄圣杰, 刘硕, 谢国涛, 秦晓辉. 结构化环境下基于点线特征的VI-SLAM系统[J]. 机械工程学报, 2024, 60(6): 296-305.
GUO Yibiao, ZHOU Yunshui, HUANG Shengjie, LIU Shuo, XIE Guotao, QIN Xiaohui. VI-SLAM System Based on Point-line Features in Structured Environment[J]. Journal of Mechanical Engineering, 2024, 60(6): 296-305.
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