Single-Camera EKF-vSLAM

This paper presents an Extended Kaman Filter implementation of a single-camera Visual Simultaneous Localization and Mapping algorithm, a novel algorithm for simultaneous localization and mapping problem widely studied in mobile robotics field. The algorithm is vision and odometry-based, The odometry data is incremental, and therefore it will accumulate error over time, since the robot may slip or may be lifted, consequently if the odometry is used alone we can not accurately estimate the robot position, in this paper we show that a combination of odometry and visual landmark via the extended Kalman filter can improve the robot position estimate. We use a Pioneer II robot and motorized pan tilt camera models to implement the algorithm.




References:
[1] S. Thrun, W. Burgard, and D. Fox. «A real-time algorithm for mobile
robot mapping with applications to multi-robot and 3D mapping». In:
Proceedings of the IEEE International Conference on Robotics and
Automation, 2000.
[2] M. Newman, J. J. Leonard, J. Neira, and J. Tardos. «Explore and return:
Experimental validation of real time concurrent mapping and
localization». In: Proceedings of the IEEE Inter-national Conference on
Robotics and Automation, 2002.
[3] J. Davison « 3D Simultaneous Localization and Map-Building Using
Active Vision for a Robot Moving on Undulating Terrain ». In:
Proceedings of the IEEE Computer Society Conference on Computer
Vision and Pattern Recognition , 2001.
[4] J. Davison «Real-Time Simultaneous Localization and Mapping with a
Single Camera». In: Proceedings of the Ninth IEEE International
Conference on Computer Vision 2003.
[5] M. Tomono. «3-D Localization and Mapping Using a Single Camera
Based on Structure-from-Motion with Automatic Baseline Selection».
In: Proceeding of the IEEE International Conference on Robotics and
Automation, 2005.
[6] C. Harris and M.J Stephens. «A combined corner and edge detector». In:
Alvey Vision Conference, Pages 147-152, 1988.
[7] S. Thrun, W. Burgard, and D. Fox. «Probabilistic Robotics». MIT Press
2005.