Marcos Arza-Garciacute;a Author

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Optimal Parameters for DEM Extraction from IKONOS Data: A Case Study of a Coastal Area

Author(s):

Mariluz Gil-Docampo and Marcos Arza-García

The gap between aerial and satellite photogrammetry is getting smaller as both systems have benefited from great technology improvements in the last years. However, the major advantage of earth observation satellites continues to be the possibility to acquire data virtually anywhere on the planet without considering border and logistical restrictions and over huge extensions. A pair of stereo images corresponding to a coastal area in the NW of Spain is the basis for this paper, which analyzes certain influential variables in the process of generating a Digital Elevation Model (DEM) from stereoscopic pairs of IKONOS images. The mathematical model, the number of Ground Control Points (GCPs) and their accuracies are analyzed through a ... view more»

DOI: 10.4172/2327-4581.1000169

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