Title
Visual-Inertial On-Board Throw-And-Go Initialization For Micro Air Vehicles
Abstract
We propose an approach to the throw-and-go (TnG) problem for micro air vehicles (MAVs) using visual and inertial sensors. The key challenge is the fast on-board initialization of the visual odometry (VO) system, which usually requires user input to recover the visual scale. Our approach is based on the identification of the gravity vector from the acceleration data computed with images of the ground during in free fall. This enables scaling of the poses reconstructed with visual information. The proposed framework use inertial data to control the MAV attitude so the ground is visible after the throw. Using image to image homography a metric scale is estimated with which the MAV's height is propagated. Unlike existing literature, this approach requires no additional sensor nor user input or pre-throw assumptions and can recover from any initial attitude. We show results on both simulation and real data.
Year
DOI
Venue
2019
10.1109/IROS40897.2019.8967575
2019 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS)
Field
DocType
ISSN
Inertial frame of reference,Metric system,Computer vision,Visual odometry,Computer science,Homography,Acceleration,Artificial intelligence,Inertial measurement unit,Initialization,Scaling
Conference
2153-0858
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Martin Scheiber101.35
Jeff Delaune212.72
Roland Brockers3779.62
Stephan Weiss4102258.90