Ego-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection
Correct ego-lane index estimation is essential for lane change and decision making for intelligent vehicles, especially in global navigation satellite system (GNSS)-challenged environments. To achieve this, we propose an ego-lane index estimation approach in an urban scenario based on particle filte...
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2021
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oai:doaj.org-article:6c02405b5bbf4e81af693c201c3ae9342021-11-11T19:07:29ZEgo-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection10.3390/s212171181424-8220https://doaj.org/article/6c02405b5bbf4e81af693c201c3ae9342021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7118https://doaj.org/toc/1424-8220Correct ego-lane index estimation is essential for lane change and decision making for intelligent vehicles, especially in global navigation satellite system (GNSS)-challenged environments. To achieve this, we propose an ego-lane index estimation approach in an urban scenario based on particle filter (PF). The particles are initialized and propagated by dead reckoning with inertial measurement unit (IMU) and odometry. A lane-level map is used to navigate the particles taking advantage of topologic and geometric information of lanes. GNSS single-point positioning (SPP) can provide position estimation with meter-level accuracy in urban environments, which can limit drift introduced by dead reckoning for updating the weight of each particle. Light detection and ranging (LiDAR) is a common sensor in an intelligent vehicle. A LiDAR-based road boundary detection method provides distance measurements from the vehicle to the left/right road boundaries, which provides a measurement for importance weighting. However, the high precision of the LiDAR measurements may put a tight constraint on the distribution of particles, which can lead to particle degeneration with sparse particle sets. To deal with this problem, we propose a novel step that shifts particles laterally based on LiDAR measurements instead of importance weighting in the traditional PF scheme. We tested our methods on an urban expressway at a low traffic volume period to ensure road boundaries can be detected by LiDAR measurements at most time steps. Experimental results prove that our improved PF scheme can correctly estimate ego-lane index at all time steps, while the traditional PF scheme produces wrong estimations at some time steps.Baoguo YuHongjuan ZhangWenzhuo LiChuang QianBijun LiChaozhong WuMDPI AGarticleego-lane index estimationlane-level mapparticle filterroad boundary detectionLiDARGNSSChemical technologyTP1-1185ENSensors, Vol 21, Iss 7118, p 7118 (2021) |
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ego-lane index estimation lane-level map particle filter road boundary detection LiDAR GNSS Chemical technology TP1-1185 |
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ego-lane index estimation lane-level map particle filter road boundary detection LiDAR GNSS Chemical technology TP1-1185 Baoguo Yu Hongjuan Zhang Wenzhuo Li Chuang Qian Bijun Li Chaozhong Wu Ego-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection |
description |
Correct ego-lane index estimation is essential for lane change and decision making for intelligent vehicles, especially in global navigation satellite system (GNSS)-challenged environments. To achieve this, we propose an ego-lane index estimation approach in an urban scenario based on particle filter (PF). The particles are initialized and propagated by dead reckoning with inertial measurement unit (IMU) and odometry. A lane-level map is used to navigate the particles taking advantage of topologic and geometric information of lanes. GNSS single-point positioning (SPP) can provide position estimation with meter-level accuracy in urban environments, which can limit drift introduced by dead reckoning for updating the weight of each particle. Light detection and ranging (LiDAR) is a common sensor in an intelligent vehicle. A LiDAR-based road boundary detection method provides distance measurements from the vehicle to the left/right road boundaries, which provides a measurement for importance weighting. However, the high precision of the LiDAR measurements may put a tight constraint on the distribution of particles, which can lead to particle degeneration with sparse particle sets. To deal with this problem, we propose a novel step that shifts particles laterally based on LiDAR measurements instead of importance weighting in the traditional PF scheme. We tested our methods on an urban expressway at a low traffic volume period to ensure road boundaries can be detected by LiDAR measurements at most time steps. Experimental results prove that our improved PF scheme can correctly estimate ego-lane index at all time steps, while the traditional PF scheme produces wrong estimations at some time steps. |
format |
article |
author |
Baoguo Yu Hongjuan Zhang Wenzhuo Li Chuang Qian Bijun Li Chaozhong Wu |
author_facet |
Baoguo Yu Hongjuan Zhang Wenzhuo Li Chuang Qian Bijun Li Chaozhong Wu |
author_sort |
Baoguo Yu |
title |
Ego-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection |
title_short |
Ego-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection |
title_full |
Ego-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection |
title_fullStr |
Ego-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection |
title_full_unstemmed |
Ego-Lane Index Estimation Based on Lane-Level Map and LiDAR Road Boundary Detection |
title_sort |
ego-lane index estimation based on lane-level map and lidar road boundary detection |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/6c02405b5bbf4e81af693c201c3ae934 |
work_keys_str_mv |
AT baoguoyu egolaneindexestimationbasedonlanelevelmapandlidarroadboundarydetection AT hongjuanzhang egolaneindexestimationbasedonlanelevelmapandlidarroadboundarydetection AT wenzhuoli egolaneindexestimationbasedonlanelevelmapandlidarroadboundarydetection AT chuangqian egolaneindexestimationbasedonlanelevelmapandlidarroadboundarydetection AT bijunli egolaneindexestimationbasedonlanelevelmapandlidarroadboundarydetection AT chaozhongwu egolaneindexestimationbasedonlanelevelmapandlidarroadboundarydetection |
_version_ |
1718431589166219264 |