Title
Tightly coupled Visual Inertial Odometry based on Artificial Landmarks
Abstract
Motion planning and control of mobile robots rely on high-accuracy estimation of pose and velocity. Many researchers use motion capture system to estimate the robot state, but this system is usually expensive and can only be used indoor. For this reason, this paper proposes an artificial landmarks based cost-effective visual inertial odometry system where Iterative Extended Kalman Filter (IEKF) acts as the back-end optimizer. Since most tags used as artificial landmarks like bar code facing the problem of decoding the information during the detection, we redesign the tag which can simplify the deployment and improve the detection efficiency. The proposed IEKF filter framework makes the measurement of the fisheye monocular camera and the IMU combined to co-estimate the pose of robot, the location of detected corners in tag and the IMU bias. Additionally, on-line calibration of the IMU bias and the extrinsic parameters between IMU and camera can be done during the robot motion. By running our algorithm real-time on unmanned aerial vehicle (UAV) and comparing with the groundtruth data obtained from the Optitrack motion capture system, our algorithm can provide high-precision estimation of the pose and velocity of UAV.
Year
DOI
Venue
2018
10.1109/ICInfA.2018.8812447
2018 IEEE International Conference on Information and Automation (ICIA)
Keywords
Field
DocType
Mobile robots,Artificial landmarks,Visual Inertial Odometry
Motion planning,Inertial frame of reference,Computer vision,Motion capture,Extended Kalman filter,Computer science,Odometry,Control engineering,Artificial intelligence,Inertial measurement unit,Robot,Mobile robot
Conference
ISBN
Citations 
PageRank 
978-1-5386-8070-4
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Junlin Song101.01
Zheming Liu200.34
Xin Liu33919320.56
Jifeng Guo422.75