Title: | Automatic extraction of road features in urban environments using dense ALS data |
Authors: | Soilán, Mario Truong-Hong, Linh Riveiro, Belén Laefer, Debra F. |
Keywords: | Airborne laser scanning;Point cloud segmentation;Urban modelling;Pavements classification;LiDAR;Remote sensing |
Issue Date: | Feb-2018 |
Citation: | Soilán, M., Truong-Hong, L., Riveiro, B., Laefer, D.F. (2017). Automatic extraction of road features in urban environments using dense ALS data. International Journal of Applied Earth Observation and Geoinformation, 64, 226–236, doi:10.1016/j.jag.2017.09.010 |
Abstract: | This paper describes a methodology that automatically extracts semantic information from urban ALS data for urban parameterization and road network definition. First, building façades are segmented from the ground surface by combining knowledge-based information with both voxel and raster data. Next, heuristic rules and unsupervised learning are applied to the ground surface data to distinguish sidewalk and pavement points as a means for curb detection. Then radiometric information was employed for road marking extraction. Using high-density ALS data from Dublin, Ireland, this fully automatic workflow was able to generate a F-score close to 95% for pavement and sidewalk identification with a resolution of 20 cm and better than 80% for road marking detection. |
URI: | http://hdl.handle.net/2451/40079 |
Rights: | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Appears in Collections: | Debra Laefer's Collection |
Files in This Item:
File | Description | Size | Format | |
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Automatic extraction of road features... ALS data.pdf | Pre-Print | 1.28 MB | Adobe PDF | View/Open |
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