Feature Scan Context aided Lidar-IMU Simultaneously Localization and Mapping

Yan Wen, Lijin Han, Ying Li, Sihao Lin, Shida Nie, Xiaohui Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Precise simultaneously localization and mapping is necessary to self-driving cars. In this paper, we present a SLAM system fusing with lidar and IMU data. Considering that pose initial value is a key problem for point cloud ICP alignment, we propose a method using the Extended Kalman Filter to combine initial yaw value obtained by feature scan context with the preintegrated IMU estimation value, aiming to improve the initial yaw value of the vehicle. In addition, we adopt the feature scan context to the loop closure, which is beneficial to the whole SLAM system to reduce the accumulative errors. Sufficient experiments are carried out in outdoor environment. The results show that our method acquires significant superior performance comparing with other two main current lidar SLAM systems-LIO-SAM and LeGo-Loam.

Original languageEnglish
Title of host publicationProceedings of the 2023 7th CAA International Conference on Vehicular Control and Intelligence, CVCI 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350340488
DOIs
Publication statusPublished - 2023
Event7th CAA International Conference on Vehicular Control and Intelligence, CVCI 2023 - Changsha, China
Duration: 27 Oct 202329 Oct 2023

Publication series

NameProceedings of the 2023 7th CAA International Conference on Vehicular Control and Intelligence, CVCI 2023

Conference

Conference7th CAA International Conference on Vehicular Control and Intelligence, CVCI 2023
Country/TerritoryChina
CityChangsha
Period27/10/2329/10/23

Keywords

  • SLAM
  • extended kalman filter
  • loop closure
  • multi-sensor fusion
  • scan context

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