Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B3, 465-468, 2016
https://doi.org/10.5194/isprs-archives-XLI-B3-465-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
09 Jun 2016
PEDESTRIAN DETECTION BY LASER SCANNING AND DEPTH IMAGERY
A. Barsi1, T. Lovas1, B. Molnar1, A. Somogyi1, and Z. Igazvolgyi2 1Budapest University of Technology and Economics (BME), Dept. of Photogrammetry and Geoinformatics, Hungary
2BME, Dept. of Highway and Railway Engineering, Hungary
Keywords: profile scanning, depth imagery, 3D modelling, pedestrian detection Abstract. Pedestrian flow is much less regulated and controlled compared to vehicle traffic. Estimating flow parameters would support many safety, security or commercial applications. Current paper discusses a method that enables acquiring information on pedestrian movements without disturbing and changing their motion. Profile laser scanner and depth camera have been applied to capture the geometry of the moving people as time series. Procedures have been developed to derive complex flow parameters, such as count, volume, walking direction and velocity from laser scanned point clouds. Since no images are captured from the faces of pedestrians, no privacy issues raised. The paper includes accuracy analysis of the estimated parameters based on video footage as reference. Due to the dense point clouds, detailed geometry analysis has been conducted to obtain the height and shoulder width of pedestrians and to detect whether luggage has been carried or not. The derived parameters support safety (e.g. detecting critical pedestrian density in mass events), security (e.g. detecting prohibited baggage in endangered areas) and commercial applications (e.g. counting pedestrians at all entrances/exits of a shopping mall).
Conference paper (PDF, 1140 KB)


Citation: Barsi, A., Lovas, T., Molnar, B., Somogyi, A., and Igazvolgyi, Z.: PEDESTRIAN DETECTION BY LASER SCANNING AND DEPTH IMAGERY, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B3, 465-468, https://doi.org/10.5194/isprs-archives-XLI-B3-465-2016, 2016.

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