NDLI: Terrain slope analyses between terrestrial laser scanner and airborne laser scanning

Content Provider	IEEE Xplore Digital Library
Author	Wan Aziz, W.A. Syahmi, M.Z. Anuar, A. Khairul, N.T.
Copyright Year	2012
Description	Author affiliation: Department of Surveying Science & Geomatics, Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia (Khairul, N.T.) \|\| Department of Geoinformatics, Faculty of Geoinformation Science & Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia (Wan Aziz, W.A.; Syahmi, M.Z.; Anuar, A.)
Abstract	Landslide is a geohazard phenomenon of mass movement of terrain. In order to prevent landslide, understanding the behavior of the landslide is of importance. In such a case, many landslide monitoring rely on accurate digital terrain models (DTM). Typically, DTM can be generated by point based measurements such as GPS, leveling, total station and laser distancemeters. However, these methods will raise obvious measurement problems because of the discontinuous character since they only allow measuring discrete points, and therefore it can be difficult to ensure that problems are recorded and handled in a consistent manner. In recent years, the ‘Light Detection and Ranging - LiDAR’ technology in the mode of Terrestrial Laser Scanning (TLS) and Airborne Laser Scanning (ALS) find rapidly growing interest in remote sensing and photogrammetry field as efficient tools for fast and reliable three-dimensional (3D) point cloud data acquisition. These laser techniques obtains the 3D reconstruction of objects; the measure of the distance from the platform (eg. ground-based for TLS, airplane or helicopter for ALS) derives generally from the time employed by the laser beam to go and to come back (time-of-flight principle). This paper describes the capabilities of TLS and ALS in slope mapping studies. The study has been conducted at two test sites, namely Tanah Rata and Habu, Cameron Highland, Malaysia. Several data acquisitions on selected cut slopes were performed using the TLS instrument: Topcon GLS1500. Ground control points were established using Real Time Kinematic GPS to provide a local coordinate system on laser scanning data. The ALS raw data was provided by a private mapping company. This study shows the ability of TLS and ALS to obtain reliable 3-D slope information over unstable area.
Starting Page	242
Ending Page	247
File Size	1187310
Page Count	6
File Format	PDF
ISBN	9781467320351
e-ISBN	9781467320368
DOI	10.1109/ICSGRC.2012.6287169
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-16
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser radar Measurement by laser beam Surface emitting lasers Terrestrial Laser Scanner Point Cloud Digital Terrain Model Slope Gradient Airborne Laser Scanner Laser modes Terrain factors Monitoring Global Positioning System
Content Type	Text
Resource Type	Article

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Slope gradient analysis at different resolution using terrestrial laser scanner

The movement detection on the landslide surface by using Terrestrial Laser Scanning

Terrain slope calculation from waveform of airborne LiDAR

Landslide site reconstruction with terrestrial laser scanning

Processing Fine Digital Terrain Models by Markovian Regularization from 3D Airborne Lidar Data

Quantitatively Evaluating Random Attitude Measurement Errors' Impacts on DSM Elevation Accuracy From Airborne Laser Scanning

Simulation on impact of random attitude measurement errors on point cloud and 3D image of ALS

GEOMETRICAL ASPECTS OF AIRBORNE LASER SCANNING AND TERRESTRIAL LASER SCANNING

Geometrical aspects of airborne laser scanning and terrestrial laser scanning.

Terrain slope analyses between terrestrial laser scanner and airborne laser scanning

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The movement detection on the landslide surface by using Terrestrial Laser Scanning

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