Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXIX-B5, 157-162, 2012
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXIX-B5/157/2012/
doi:10.5194/isprsarchives-XXXIX-B5-157-2012
© Author(s) 2012. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
27 Jul 2012
LANDSLIDE MONITORING USING TERRESTRIAL LASER SCANNER: GEOREFERENCING AND CANOPY FILTERING ISSUES IN A CASE STUDY
M. Barbarella1 and M. Fiani2 1DICAM, Università di Bologna, Viale Risorgimento 2, 40136 Bologna, Italy
2DICIV, Università di Salerno, Via Ponte Don Melillo 1 Fisciano (SA), Italy
Keywords: LIDAR, TLS, Monitoring, Landslide, DEM/DTM, Reliability, Accuracy Abstract. In order to define a methodology that faces the major critical issues, we used a Terrestrial Laser Scanner to monitor a large landslide that caused significant disruptions both to an important state road and to a major railway line in Italy. To survey the landslide we used three different models of Terrestrial Laser Scanners, including a "full wave form" one, potentially useful for filtering vegetation from the data. The output of each measurement campaign is a Digital Surface Model referred to a unique reference system. Starting from the DSMs we produced the Digital Terrain Models, one for each survey. The use of different models of TLS together with the software packages recommended by the companies for data processing, allowed us to compare the surveys and to evaluate the reliability and the accuracy of results. The comparison of data has been useful in order to identify and analyse over time the areas of greatest deformation and the directions of landslide movement and it also gives us some elements about the validity of the technique in this kind of applications. The laser surveys have shown a strong dynamic of the slope but have also highlighted some difficulties in order to efficiently filtering the data. Using two different kinds of TLS, full wave form and mono eco, on the same portion of landslide allows us to make comparisons between the two methodologies for landslide monitoring in a real-world context.
Conference paper (PDF, 3264 KB)


Citation: Barbarella, M. and Fiani, M.: LANDSLIDE MONITORING USING TERRESTRIAL LASER SCANNER: GEOREFERENCING AND CANOPY FILTERING ISSUES IN A CASE STUDY, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXIX-B5, 157-162, doi:10.5194/isprsarchives-XXXIX-B5-157-2012, 2012.

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