Change analysis with terrasar-X data

D. Weihing, F.V. Von Poncet, M. Schlund, O. Lang

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

7 Citations (Scopus)

Abstract

Change analyses play an important role for different applications, ranging from small- to large-scale monitoring. To identify changes from SAR images of repeat pass acquisitions different methods are commonly applied, which differ with respect to the parameter as an indicator of changes. The backscatter intensity is analysed in incoherent change detection methods, whereas in the coherent change detection the complex correlation coefficient is analysed as a change indicator. These methods provide complementary characterisations, since they are sensitive to different measures of a SAR scene. However, often not only the detection of changes, but also the assessment of the detected changes is of interest, which automated is a challenging task. In this paper a combination of detection and assessment of changes is shown. Additional information is integrated into the proposed scheme to separate relevant changes from less relevant ones in order to decrease unrequested changes and evaluate the type of change. Texture measures provide information on the spatial variation of the backscatter and thus information of the local surface characteristics within the scene. This information is used to restrict the search for areas and changes of interest as well as for the assessment of changes. The goal of our analysis is to support the implementation of an operational change detection process and to define a suitable assessment of changes from TerraSAR-X data regarding different customers’ requirements.
Original languageEnglish
Title of host publicationInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Subtitle of host publicationISPRS Technical Commission VII Symposium on Advancing Remote Sensing Science
EditorsB. Szekely, W. Wagner
PublisherInternational Society for Photogrammetry and Remote Sensing (ISPRS)
Pages644-647
Number of pages4
Volume38
Publication statusPublished - Jul 2010
Externally publishedYes
EventISPRS 2010 : Technical Commission VII Symposium 100 Years ISPRS Advancing Remote Sensing Science VOLUME XXXVIII PART 7B, 5-7 July 2010, Vienna, Austria - Vienna, Austria
Duration: 5 Jul 20107 Jul 2010
http://www.isprs.org/proceedings/XXXVIII/part7/ (Full text Open Access proceedings)

Publication series

NameInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
PublisherISPRS
Volume38
ISSN (Print)1682-1777

Conference

ConferenceISPRS 2010 : Technical Commission VII Symposium 100 Years ISPRS Advancing Remote Sensing Science VOLUME XXXVIII PART 7B, 5-7 July 2010, Vienna, Austria
CityVienna, Austria
Period5/07/107/07/10
Internet address

Keywords

  • Analysis
  • Change detection
  • Monitoring
  • Change
  • SAR
  • ITC-CV

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