Quality assessment of TerraSAR-X derived ground control points

Author

Koppe, Wolfgang ; Wenzel, Ronny ; Hennig, Simon ; Janoth, Jürgen ; Hummel, Philipp ; Raggam, Hannes

Author_Institution

Astrium Geo-Inf. Services, Infoterra GmbH, Friedrichshafen, Germany

fYear

2012

fDate

22-27 July 2012

Firstpage

3580

Lastpage

3583

Abstract

The orbit accuracy of TerraSAR-X and TanDEM-X radar satellites is in the range of centimeters. This information is useful to carry out high precision surveying from space. The objective of this study is the quality assessment of ground control points (GCPs) retrieved from TerraSAR-X and TanDEM-X imagery. The focus is put on the optimized stereo constellation for the GCP retrieval procedure. GCPs are important inputs for precise orthorectification of other image sources. Depending on the input image parameters it is possible to retrieve GCPs with a 3D accuracy up to 1 m.

Keywords

geophysical image processing; radar imaging; stereo image processing; synthetic aperture radar; 3D accuracy; GCP retrieval procedure; TanDEM-X radar satellites; TerraSAR-X derived ground control point; high precision surveying; image sources; quality assessment; stereo constellation; Accuracy; Coordinate measuring machines; Equations; Extraterrestrial measurements; Mathematical model; Satellites; Synthetic aperture radar; GCP; SAR; Stereo; TerraSAR-X;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6350643

Filename

6350643