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g and Spatial Information Sciences, Volume XXXIX-B4, 2012 
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia 
many new sensors were launched into space so a large amount 
of historical and current data will be available in the near future. 
In the meanwhile commercial applications like the 
interferometric recording of ground movements in German 
mining areas have been developed (Walter et. Al, 2009). . In 
ESA's GMES project, Terrafirma, a ground deformation 
detection and monitoring service called Wide Area Product 
(WAP) is under development by the German Aerospace Center 
(DLR) based on Persistent Scatterer Interferometry (PSInSAR). 
Fusion of image data is also used for change detection using 
image processing methods. 
The two key advantages of radar systems are: They can achieve 
an outstanding spatial accuracy of the data (interferometry), and 
they are almost independent from weather conditions. The 
disadvantages are complex and extensive data processing 
requirements, interpretability of the data, and strong BRDF 
(Bidirectional Reflectance Distribution Function) effects. 
There are several bands or channels that are used for different 
applications. With the X-band, high spatial resolution can be 
achieved while L-band data can provide subsurface ground 
information by penetrating into the ground below the surface. 
In particular, the standard deals with the following topics: 
e. sensors (Space & Aircraft Sensors) 
° algorithms and processing strategies 
e influence of elevation models, corrections / adverse 
effects, reference data (corner reflectors), persistance 
scatterer (accuracy / correlation to ground reference 
measurements) 
5. CONCLUSION 
The standardization project is well accepted in the community. 
It supports the preparation, execution, and evaluation of 
commercial and scientific projects. At the same time, 
international projects are supported. 
The approach of the German Standardization Institute is serving 
the transfer of knowledge and best practise from the scientific 
research results towards practical application in administration 
and geomatic service industry. The standards developed also 
serve as the official specifications for invitations to tender of the 
public cartography administrations in relation to the service 
industry in photogrammetry, remote sensing, and geomatics. 
6. REFERENCES 
References from Journals: 
Jahn, H., Reulke, R., 2012. A sensor-based approach to image 
quality. PFG, 2012(1), pp. 19-27. 
Walter, D.; Wegmueller, U.; Spreckels, V.; Hannemann, W.; 
Busch, W.: Interferometric monitoring of an active underground 
mining field with high-resolution SAR sensors. In: ISPRS 
Hannover Workshop 2009, WG 1/2, 1/4, 1V/2, 1V/3, VII/2, 
Hannover, Germany, June 2 - 5, 2009. 
References from websites: 
DIN 18740-3:2003-10. Photogrammetrische Produkte - Teil 3: 
Anforderungen an das Orthophoto. 
http://www .beuth.de/de/norm/din-18740-3/65002443 (14 April 
2012). 
DIN 18740-4:2007-09. Photogrammetrische Produkte - Teil 4: 
Anforderungen an digitale Luftbildkameras und an digitale 
Luftbilder. http://www .beuth.de/de/norm/din- 1 8740- 
4/98487271 (14 April 2012). 
DIN 18740-5:2011-08. Photogrammetrische Produkte - Teil 5: 
Anforderungen an die Klassifizierung optischer Fern- 
erkundungs. http://www .beuth.de/de/norm-entwurf/din- 
18740-5/143772133 (14 April 2012). 
DIN 18716:2011-08. Photogrammetrie und Fernerkundung - 
Begriffe. http://www .beuth.de/de/norm-entwurf/din- 
18716/143772013 (14 April 2012). 
Terrafirma: http//www.terrafirma.eu.com (26 April 2012) 
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