Title
LINS - A Lidar-Inertial State Estimator for Robust and Efficient Navigation.
Abstract
We present LINS, a lightweight lidar-inertial state estimator, for real-time ego-motion estimation. The proposed method enables robust and efficient navigation for ground vehicles in challenging environments, such as feature-less scenes, via fusing a 6-axis IMU and a 3D lidar in a tightly-coupled scheme. An iterated error-state Kalman filter (ESKF) is designed to correct the estimated state recursively by generating new feature correspondences in each iteration, and to keep the system computationally tractable. Moreover, we use a robocentric formulation that represents the state in a moving local frame in order to prevent filter divergence in a long run. To validate robustness and generalizability, extensive experiments are performed in various scenarios. Experimental results indicate that LINS offers comparable performance with the state-of-the-art lidar-inertial odometry in terms of stability and accuracy and has order-of-magnitude improvement in speed.
Year
DOI
Venue
2020
10.1109/ICRA40945.2020.9197567
ICRA
DocType
Volume
Issue
Conference
2020
1
Citations 
PageRank 
References 
1
0.34
18
Authors
6
Name
Order
Citations
PageRank
Chao Qin120.69
Haoyang Ye2176.84
Christian E. Pranata310.34
Jun Han410.34
Shuyang Zhang542.40
Ming Liu677594.83