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Remote Sens. 2016, 8(9), 740; doi:10.3390/rs8090740

An Algorithm for Automatic Road Asphalt Edge Delineation from Mobile Laser Scanner Data Using the Line Clouds Concept

1
Department of Mining Exploitation, University of Oviedo, 33004 Oviedo, Spain
2
Finnish Geospatial Research Institute FGI, P.O. Box 15, FI-02431 Masala, Finland
*
Author to whom correspondence should be addressed.
Academic Editors: Bailang Yu, Gonzalo Pajares, Xiaofeng Li and Prasad S. Thenkabail
Received: 10 July 2016 / Revised: 24 August 2016 / Accepted: 30 August 2016 / Published: 7 September 2016
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Abstract

Accurate road asphalt extent delineation is needed for road and street planning, road maintenance, and road safety assessment. In this article, a new approach for automatic roadside delineation is developed based on the line clouds concept. The method relies on line cloud grouping from point cloud laser data. Using geometric criteria, the initial 3D LiDAR point data is structured in lines covering the road surface. These lines are then grouped according to a set of quasi-planar restriction rules. Road asphalt edge limits are extracted from the end points of lines belonging to these groups. Finally a two-stage smoothing procedure is applied to correct for edge occlusions and other anomalies. The method was tested on a 2.1 km stretch of road, and the results were checked using a RTK-GNSS measured dataset as ground truth. Correctness and completeness were 99% and 97%, respectively. View Full-Text
Keywords: mobile laser scanning; 3D road extraction; scanning lines; road edges; smoothing window; road management; line clouds mobile laser scanning; 3D road extraction; scanning lines; road edges; smoothing window; road management; line clouds
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Cabo, C.; Kukko, A.; García-Cortés, S.; Kaartinen, H.; Hyyppä, J.; Ordoñez, C. An Algorithm for Automatic Road Asphalt Edge Delineation from Mobile Laser Scanner Data Using the Line Clouds Concept. Remote Sens. 2016, 8, 740.

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