scholarly journals Very High Resolution Mapping with the Pléiades Satellite Constellation

2018 ◽  
Vol 6 (2) ◽  
pp. 89 ◽  
Author(s):  
Roland Perko ◽  
Hannes Raggam ◽  
Mathias Schardt ◽  
Peter Michael Roth
Keyword(s):  
High Resolution ◽  
Satellite Constellation ◽  
High Resolution Mapping ◽  
Resolution Mapping ◽  
Very High

scholarly journals Operational Framework for Rapid, Very-high Resolution Mapping of Glacial Geomorphology Using Low-cost Unmanned Aerial Vehicles and Structure-from-Motion Approach

2019 ◽  
Vol 11 (1) ◽  
pp. 65 ◽  
Author(s):  
Marek W. Ewertowski ◽  
Aleksandra M. Tomczyk ◽  
David J. A. Evans ◽  
David H. Roberts ◽  
Wojciech Ewertowski
Keyword(s):  
High Resolution ◽  
Unmanned Aerial Vehicles ◽  
Structure From Motion ◽  
Low Cost ◽  
Control Point ◽  
Glacial Geomorphology ◽  
High Resolution Mapping ◽  
Aerial Vehicles ◽  
Resolution Mapping ◽  
Very High

This study presents the operational framework for rapid, very-high resolution mapping of glacial geomorphology, with the use of budget Unmanned Aerial Vehicles and a structure-from-motion approach. The proposed workflow comprises seven stages: (1) Preparation and selection of the appropriate platform; (2) transport; (3) preliminary on-site activities (including optional ground-control-point collection); (4) pre-flight setup and checks; (5) conducting the mission; (6) data processing; and (7) mapping and change detection. The application of the proposed framework has been illustrated by a mapping case study on the glacial foreland of Hørbyebreen, Svalbard, Norway. A consumer-grade quadcopter (DJI Phantom) was used to collect the data, while images were processed using the structure-from-motion approach. The resultant orthomosaic (1.9 cm ground sampling distance—GSD) and digital elevation model (7.9 cm GSD) were used to map the glacial-related landforms in detail. It demonstrated the applicability of the proposed framework to map and potentially monitor detailed changes in a rapidly evolving proglacial environment, using a low-cost approach. Its coverage of multiple aspects ensures that the proposed framework is universal and can be applied in a broader range of settings.

scholarly journals Very high resolution mapping of coral reef state using airborne bathymetric LiDAR surface-intensity and drone imagery

2018 ◽  
Vol 39 (17) ◽  
pp. 5676-5688 ◽  
Author(s):  
Antoine Collin ◽  
Camille Ramambason ◽  
Yves Pastol ◽  
Elisa Casella ◽  
Alessio Rovere ◽  
...  
Keyword(s):  
Coral Reef ◽  
High Resolution ◽  
High Resolution Mapping ◽  
Resolution Mapping ◽  
Very High
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