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Towards change detection in urban area by SAR interferometry and radargrammetry

: Dubois, C.; Thiele, A.; Hinz, S.

Fulltext urn:nbn:de:0011-n-2982662 (6.6 MByte PDF)
MD5 Fingerprint: 14e78996306c15d59d0335e4bc320701
Created on: 31.7.2014

Heipke, C. ; International Society for Photogrammetry and Remote Sensing -ISPRS-:
ISPRS Hannover Workshop 2013. High-Resolution Earth Imaging for Geospatial Information : 21 - 24 May 2013, Hannover, Germany
Istanbul: ISPRS, 2013 (ISPRS Archives XL-1/W1)
Hannover Workshop "High-Resolution Earth Imaging for Geospatial Information" <2013, Hannover>
Conference Paper, Electronic Publication
Fraunhofer IOSB ()
change detection; urban area; InSAR; radargrammetry

Change detection in urban area is an active topic in remote sensing. However, well-dealt subject in optical remote sensing, this research topic is still at an early stage and needs deeper investigations and improvement in what concerns SAR and InSAR remote sensing. Due to their weather and daylight-independency, SAR sensors allow an all-time observation of the earth. This is determining in cases where rapid change detection is required after a natural - or technological - disaster. Due to the high resolution that can be achieved, the new generation of space-borne radar sensors opens up new perspectives for analysing buildings in urban areas. Moreover, due to their short revisiting cycle, they give rise to monitoring and change detection applications. In this paper, we present a concept for change detection in urban area at building level, relying only on SAR- and InSAR data. In this approach, interferometric and radargrammetric SAR data are merged in order to detect changes. Here, we present the overall workflow, the test area, the required data as well as first findings on the best-suited stereo-configurations for change detection.