Radargrammetry and space triangulation for DEM generation and image ortho-rectification

U Wegmuller,T Strozzi,A Wiesmann,C Werner

doi:10.1109/igarss.2003.1293716

Radargrammetry and space triangulation for DEM generation and image ortho-rectification

U Wegmuller, T Strozzi + Show 2 more

https://doi.org/10.1109/igarss.2003.1293716

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Publication Date: Jul 21, 2003

Citations: 4

Affiliation: Gamma Remote Sensing (Switzerland)

#Derive Digital Elevation Models #Space Triangulation + Show 8 more

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Abstract

In 2002 ENVISAT with the advanced SAR (ASAR) as one important instrument was launched. As compared to the preceding SAR sensors on ERS-1 and ERS-2 the ASAR has beam-steering capability permitting the acquisition of data over the same area under the different incidence angles as required by radargrammetry. In this paper a concept of combined use of radargrammetry and space triangulation to derive digital elevation models (DEMs) is presented. Space triangulation with opposite side acquisitions is used to determine a number of control points. Radargrammetry is then used to derive a DEM using these control points as reference. Preliminary test on the different steps of the combined method are presented.

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