Imperial College London

DrStefanLeutenegger

Faculty of EngineeringDepartment of Computing

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 7123s.leutenegger Website

 
 
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Location

 

360ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Lukierski:2015:10.1109/ECMR.2015.7324222,
author = {Lukierski, R and Leutenegger, S and Davison, AJ},
doi = {10.1109/ECMR.2015.7324222},
pages = {1--8},
publisher = {IEEE},
title = {Rapid free-space mapping from a single omnidirectional camera},
url = {http://dx.doi.org/10.1109/ECMR.2015.7324222},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - Low-cost robots such as floor cleaners generally rely on limited perception and simple algorithms, but some new models now have enough sensing capability and computation power to enable Simultaneous Localisation And Mapping (SLAM) and intelligent guided navigation. In particular, computer vision is now a serious option in low cost robotics, though its use to date has been limited to feature-based mapping for localisation. Dense environment perception such as free space finding has required additional specialised sensors, adding expense and complexity. Here we show that a robot with a single passive omnidirectional camera can perform rapid global free-space reasoning within typical rooms. Upon entering a new room, the robot makes a circular movement to capture a closely-spaced omni image sequence with disparity in all horizontal directions. feature-based visual SLAM procedure obtains accurate poses for these frames before passing them to a dense matching step, 3D semi-dense reconstruction and visibility reasoning. The result is turned into a 2D occupancy map, which can be improved and extended if necessary through further movement. This rapid, passive technique can capture high quality free space information which gives a robot a global understanding of the space around it. We present results in several scenes, including quantitative comparison with laser-based mapping.
AU - Lukierski,R
AU - Leutenegger,S
AU - Davison,AJ
DO - 10.1109/ECMR.2015.7324222
EP - 8
PB - IEEE
PY - 2015///
SP - 1
TI - Rapid free-space mapping from a single omnidirectional camera
UR - http://dx.doi.org/10.1109/ECMR.2015.7324222
UR - http://hdl.handle.net/10044/1/33983
ER -