Title
Fast relocalisation and loop closing in keyframe-based SLAM
Abstract
In this paper we present for the first time a relocalisation method for keyframe-based SLAM that can deal with severe viewpoint change, at frame-rate, in maps containing thousands of keyframes. As this method relies on local features, it permits the interoperability between cameras, allowing a camera to relocalise in a map built by a different camera. We also perform loop closing (detection + correction), at keyframerate, in loops containing hundreds of keyframes. For both relocalisation and loop closing, we propose a bag of words place recognizer with ORB features, which is able to recognize places spending less than 39 ms, including feature extraction, in databases containing 10K images (without geometrical verification). We evaluate the performance of this recognizer in four different datasets, achieving high recall and no false matches, and getting better results than the state-of-art in place recognition, being one order of magnitude faster.
Year
DOI
Venue
2014
10.1109/ICRA.2014.6906953
Robotics and Automation
Keywords
Field
DocType
SLAM (robots),image recognition,open systems,robot vision,visual databases,image database,interoperability,keyframe-based SLAM,loop closing,place recognition,relocalisation
Bag-of-words model,Computer vision,Computer science,Interoperability,Orb (optics),Feature extraction,Artificial intelligence,Loop closing
Conference
Volume
Issue
ISSN
2014
1
1050-4729
Citations 
PageRank 
References 
20
1.43
13
Authors
3
Name
Order
Citations
PageRank
Raul Mur-Artal136810.35
Juan Domingo23319258.54
Mur-Artal, R.3201.43