Assessing the Accuracy of Land-Based Mobile Laser Scanning Data - Mines Paris Accéder directement au contenu
Article Dans Une Revue Geomatics and Environmental Engineering Année : 2012

Assessing the Accuracy of Land-Based Mobile Laser Scanning Data

Résumé

In this paper, we have described an accuracy analysis of MLS point clouds collected using the LARA3D prototype platform in an urban area. Accuracy of the MLS was achieved through comparison with other data sources more accurate that the studied system. The study has shown, that when compared with control points, collected by a Total Station, the prototype system LARA3D is able to produce data with an accuracy better then 0.3 m. However, taking into consideration the uncertainty in the identification of common points, this method is affected by man-made error and limited by point cloud resolutions. Meanwhile, the use of existing reference data, such as e.g. high resolution point clouds from static terrestrial laser scanning provides fast and reliable data evaluation. The subjective element of operator interpretation is also removed. Results achieved using ICP algorithm show, that our mobile mapping system suffers from limitations of the sensor quality and Kalman filter implementation. In the case of point clouds locally degraded, proper matching is impossible and the obtained result does not reflect the type and scale of deformation correctly. Meanwhile, another less time-consuming and more automated method for assessing data accuracy should be developed. That may be referred to using the existing spatial data as reference, such as e.g.: cadastre, ALS data, Topographic Data Base (TBD), Digital Terrain Model, orthophotos and so on.

Mots clés

Fichier principal
Vignette du fichier
geom.2012.6.3.73.pdf (438.12 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00831473 , version 1 (07-06-2013)

Identifiants

Citer

Martyna Poreba, François Goulette. Assessing the Accuracy of Land-Based Mobile Laser Scanning Data. Geomatics and Environmental Engineering, 2012, 6 (3), pp.73-81. ⟨10.7494/geom.2012.6.3.73⟩. ⟨hal-00831473⟩
410 Consultations
608 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More