探测与控制学报2024,Vol.46Issue(5) :64-70.

基于多元离群点检测的动态目标去除SLAM方法

Dynamic Target Removal SLAM Method for Multivariate Outlier Detection

王磊 张茗宇 潘明然 张永鑫 郝涌汀
探测与控制学报2024,Vol.46Issue(5) :64-70.

基于多元离群点检测的动态目标去除SLAM方法

Dynamic Target Removal SLAM Method for Multivariate Outlier Detection

王磊 1张茗宇 1潘明然 2张永鑫 1郝涌汀1
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作者信息

  • 1. 沈阳理工大学机械工程学院,辽宁沈阳 110159
  • 2. 辽沈工业集团研发中心,辽宁沈阳 110045
  • 折叠

摘要

考虑动态环境下的目标移动对同步定位与建图(SLAM)位姿估计精度的影响,提出一种通过稠密光流计算像素运动并经过离群点检测的动态目标SLAM算法.采用稠密光流法计算图像序列的每个像素的运动信息进行动态目标判断,利用离群点检测对动态目标进行提取,通过均值滤波对动态目标进行模糊剔除,消除动态目标对SLAM精度的影响.在TUM数据集与定制数据集上进行实验,在TUM数据集测试中,与基于特征点法的Orb-slam3标杆算法进行对比分析,在动态目标影响条件下,该算法得到的轨迹误差降低43.25%;搭建开放式四旋翼无人机测试系统,在定制数据集中,进行飞行试验,得到的估计轨迹位置误差控制在1 m内,满足使用场景要求,进一步验证了算法的有效性.

Abstract

Considering the effect of target movement on the position estimation accuracy of simultaneous locali-zation and mapping(SLAM)in dynamic environments,a dynamic target SLAM algorithm was proposed by cal-culating pixel motion through dense optical flow and undergoing outlier detection.The motion information of each pixel for an image sequence was computed by the dense optical flow method for dynamic target determina-tion,the dynamic targets were extracted by using outlier detection,and the dynamic targets are fuzzy eliminated by mean filtering to eliminate the effect of dynamic targets on SLAM accuracy.Experiments were carried out on TUM dataset and customized dataset,in TUM dataset test,comparative analysis with Orbslam3 benchmarking algorithm based on feature point method,under the condition of dynamic target influence,and the trajectory er-ror obtained by the proposed algorithm was reduced by 43.25%.An open-ended quadrotor UAV test system was built,in the customized dataset,and the flight test was carried out,which obtaind estimation of the trajec-tory X,and Y position error within 1 m,which met the requirements of the usage scenario and further verifies the algorithm effectiveness.

关键词

同步定位与建图/稠密光流/位姿估计/动态目标/离群点检测

Key words

SLAM/dense optical flow/pose estimation/dynamic target/outlier detection

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基金项目

辽宁省教育厅基本科研项目(LJKFZ20220186)

沈阳市中青年科技创新人才项目(RC200537)

出版年

2024
探测与控制学报
中国兵工学会 西安机电信息研究所 机电工程与控制国家级重点实验室

探测与控制学报

CSTPCDCSCD北大核心
影响因子:0.267
ISSN:1008-1194
参考文献量11
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