Leinenkugel, Patrick and Esch, Thomas and Künzer, Claudia and Gebhardt, Steffen (2010) Large area impervious surface mapping on the basis of optical and SAR data. In: Proceedings of the 31st Asian Remote Sensing Conference, TS07-3. 31st Asian Remote Sensing Conference, 01.-05. Nov. 2010, Hanoi, Vietnam.
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ABSTRACT: The aim of this paper is to present an approach based on both optical and SAR data, in order to quantify urban impervious surface (IS) as a continuous variable on regional scales independent of other sources of geoinformation. On the basis of single-polarized TerraSAR-X data settlement areas were identified by a semi-automated, object-oriented classification approach. The settlement footprints then served as the reference area for the impervious surface estimation, which is based on a Support Vector Regression model. The method developed was applied to SPOT 5 data from 2005 and 2009, covering almost the whole area of Can Tho province in the Mekong Delta, Vietnam. In addition, a change detection analysis was carried out and average IS statistics on commune level were computed. Settlement areas were correctly identified with overall accuracies between 89% and 94%, while the comparison of modelled to the training IS values gave an absolute mean error below 15%. The results demonstrate that the approach is suitable for large area impervious surface mapping thereby focusing exclusively on settlement areas.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Large area impervious surface mapping on the basis of optical and SAR data|
|Journal or Publication Title:||Proceedings of the 31st Asian Remote Sensing Conference|
|In ISI Web of Science:||No|
|Keywords:||Impervious surface, Support Vector Regression, SPOT 5, TerraSAR-X|
|Event Title:||31st Asian Remote Sensing Conference|
|Event Location:||Hanoi, Vietnam|
|Event Type:||international Conference|
|Event Dates:||01.-05. Nov. 2010|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W - no assignement|
|DLR - Research theme (Project):||W -- no assignement (old)|
|Institutes and Institutions:||German Remote Sensing Data Center > Land Surface|
|Deposited By:||Juliane Huth|
|Deposited On:||24 Nov 2010 20:43|
|Last Modified:||24 Nov 2010 20:43|
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