Title
Will It Last? Learning Stable Features for Long-Term Visual Localization
Abstract
An increasing number of simultaneous localization and mapping (SLAM) systems are using appearance-based localization to improve the quality of pose estimates. However, with the growing time-spans and size of the areas we want to cover, appearance-based maps are often becoming too large to handle and are consisting of features that are not always reliable for localization purposes. This paper presents a method for selecting map features that are persistent over time and thus suited for long-term localization. Our methodology relies on a CNN classifier based on image patches and depth maps for recognizing which features are suitable for life-long matchability. Thus, the classifier not only considers the appearance of a feature but also takes into account its expected lifetime. As a result, our feature selection approach produces more compact maps with a high fraction of temporally-stable features compared to the current state-of-the-art, while rejecting unstable features that typically harm localization. Our approach is validated on indoor and outdoor datasets, that span over a period of several months.
Year
DOI
Venue
2016
10.1109/3DV.2016.66
2016 Fourth International Conference on 3D Vision (3DV)
Keywords
Field
DocType
localization,place recognition,feature selection,SLAM,CNN,machine learning,mapping
Computer vision,Robot vision,Feature selection,Visualization,Visual localization,Computer science,Feature extraction,Artificial intelligence,Classifier (linguistics),Simultaneous localization and mapping
Conference
ISSN
ISBN
Citations 
2378-3826
978-1-5090-5408-4
2
PageRank 
References 
Authors
0.36
18
5
Name
Order
Citations
PageRank
Marcin Dymczyk1423.72
Elena Stumm2444.81
Juan I. Nieto393988.52
Roland Siegwart47640551.49
Igor Gilitschenski57813.89