Vertical accuracy assessment of LiDAR ground points using minimum distance approach

Pourali, H, Arrowsmith, C, Chrisman, N and Matkan, A 2014, 'Vertical accuracy assessment of LiDAR ground points using minimum distance approach', in S. WInter, C. Rizos (ed.) Research at Locate'14, Canberra, Australia, 7-9 April 2014, pp. 86-96.


Document type: Conference Paper
Collection: Conference Papers

Title Vertical accuracy assessment of LiDAR ground points using minimum distance approach
Author(s) Pourali, H
Arrowsmith, C
Chrisman, N
Matkan, A
Year 2014
Conference name Research@Locate'14
Conference location Canberra, Australia
Conference dates 7-9 April 2014
Proceedings title Research at Locate'14
Editor(s) S. WInter, C. Rizos
Publisher Rheinisch-Westfaelische Technische Hochschule Aachen
Place of publication Germany
Start page 86
End page 96
Total pages 11
Abstract Light Detection And Ranging is now being widely used to provide accurate digital elevation model (DEM). One common method used to determine the accuracy of LiDAR - Light Detection And Ranging - vertical accuracy is compared LiDAR-derived DEM elevation with survey-derived ground control points (GCPs). However, because the DEM elevations are generalised to the areas covered by one cell, inherent errors when compared to the elevation of a GCP are evident. This paper presents a method based on a minimum distance approach using the so called first law of geography to assess the accuracy of LiDAR ground point dataset. The result has shown that the tested LiDAR ground point dataset is suitable for applications that do not need a vertical accuracy better than 0.5m.
Subjects Geospatial Information Systems
Copyright notice © 2014 by the paper's authors
ISSN 1613-0073
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