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Title: Road-network-based rapid geolocalization
Authors: Li, Yongfei
Yang, Dongfang
Wang, Shicheng
He, Hao
Hu, Jiaxing
Liu, Huaping
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Li, Y., Yang, D., Wang, S., He, H., Hu, J. & Liu, H. (2020). Road-network-based rapid geolocalization. IEEE Transactions On Geoscience and Remote Sensing, 59(7), 6065-6076.
Journal: IEEE Transactions on Geoscience and Remote Sensing
Abstract: In this article, a road-network-based geolocalization method is proposed. We match roads in the onboard images to the reference road vector map, and realize successful localization over areas as large as a whole city. The road network matching problem is treated as a point cloud registration problem under the homography transformation and solved under the hypothesize-and-test framework. To tackle the point cloud registration problem, a global projective-invariant feature is proposed, which consists of two road intersections augmented with their tangents. In addition, we propose the necessary conditions for the features to match. This can reduce the candidate matching features, thus accelerating the search to a great extent. These matching candidates are first “filtered” with the model consistency check in parameter space and then tested with similarity metrics to identify the correct transformation. The experiments show that our method can localize an aerial image over an area larger than 1000 km2 within several seconds on a single CPU. Our code can be found at: RCLGeolocalization-2.0.
ISSN: 0196-2892
DOI: 10.1109/TGRS.2020.3011034
Schools: School of Electrical and Electronic Engineering 
Rights: © 2020 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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