NDLI: Terrain modelling and analysis using laser scanner data (2001)

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Terrain modelling and analysis using laser scanner data (2001)

Content Provider	CiteSeerX
Author	Elmqvist, M. Jungert, E. Lantz, F. Persson, Å. Söderman, U.
Description	qualitative methods, resolution pyramid. Very detailed high-resolution (3D) digital terrain models can be obtained using airborne laser scanner data. However, laser scanning usually entails huge data sets even for moderate areas, making data management and analysis both complex and time consuming. For this reason, automatic terrain modelling and efficient storage structures supporting data access are needed. In this paper a number of methods supporting automatic construction of 3D digital terrain models, especially ground surface modelling and detection and measurement of individual trees will be discussed. Furthermore automatic and/or interactive terrain feature analysis will be discussed. A special data representation structure for the terrain model allowing efficient data storage and data access will be presented. Beside this, it is possible to create a symbolic information structure from the terrain model that can be used in queries for determination of different terrain features, such as ditches or ridges etc., but also for detection of changes in the terrain. 1 International Archives of Photogrammetry and Remote
File Format	PDF
Language	English
Publisher Date	2001-01-01
Access Restriction	Open
Subject Keyword	Efficient Data Storage Interactive Terrain Feature Analysis Digital Terrain Model Ground Surface Modelling Time Consuming Qualitative Method Individual Tree Symbolic Information Structure Laser Scanner Data Detailed High-resolution Moderate Area Huge Data Set Terrain Model Airborne Laser Scanner Data Data Access Data Management Terrain Modelling Different Terrain Feature Automatic Terrain Modelling Resolution Pyramid Special Data Representation Structure Efficient Storage Structure Automatic Construction
Content Type	Text
Resource Type	Article

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