Common problems encountered in 3D mapping of geological contacts using high-resolution terrain and image data
| Autor: | Antonio Abellán, Marc-Henri Derron, Liliane Nguyen, Antoine Guerin, Dario Carrea, Michel Jaboyedoff |
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| Rok vydání: | 2015 |
| Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences Applied Mathematics 0211 other engineering and technologies High resolution Terrain 02 engineering and technology Geologic map 01 natural sciences Image (mathematics) 3d mapping Lidar Computers in Earth Sciences Digital elevation model Cartography Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | European Journal of Remote Sensing. 48:661-672 |
| ISSN: | 2279-7254 |
| DOI: | 10.5721/eujrs20154836 |
| Popis: | An experiment has been carried out to find a reliable method to map 3D geological contacts using high-resolution Digital Elevation Models (DEMs) and pictures. Various airborne and ground-based photos, and a classical geological map, have been draped by several users on DEMs of the Scex Rouge Mountain (Vaud, Swiss Alps) producing several 3D textured models of the relief. On each of these photorealistic models, geological contacts were then drawn as polylines by hand. The locations of resulting polylines have been then compared. The draping procedure, actually the choice of pairs of control points used for the texturing step, appears to be the main source of discrepancies between the results of the different models. The subjectivity of users in drawing polylines is of lesser importance. We observed also that the widely accepted geological map of the area does not provide an accurate representation of the local geology in steep areas, especially near-vertical rock faces where this effect is marked. E... |
| Databáze: | OpenAIRE |
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