Rapid extraction of water bodies from SAR imagery assisted by InSAR DEMs

Xiao-Ming Yang; Andy Zmuda

doi:10.1117/12.319460

19 August 1998 Rapid extraction of water bodies from SAR imagery assisted by InSAR DEMs

Xiao-Ming Yang, Andy Zmuda

Proceedings Volume 3503, Microwave Remote Sensing of the Atmosphere and Environment; (1998) https://doi.org/10.1117/12.319460
Event: Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 1998, Beijing, China

Abstract

In China, detailed flood maps are produced in near real time using an airborne SAR and data transmission system. Water bodies are extracted and the information is integrated with other thematic data to facilitate the rapid response to economic and humanitarian relief. One problem has been that terrain shadow on SAR images is classified as water and this proves difficult to eliminate without detailed elevation data. However interferometric processing of ERS Tandem Mission data has been used to produce a digital elevation model for a test area in China. This has been used to mask areas of terrain shadow on SAR images therefore improving the automatic classification of water bodies. The result is promising compared with the previously used method that relied on manual elimination of shadow areas.

Citation Download Citation

Xiao-Ming Yang and Andy Zmuda "Rapid extraction of water bodies from SAR imagery assisted by InSAR DEMs", Proc. SPIE 3503, Microwave Remote Sensing of the Atmosphere and Environment, (19 August 1998); https://doi.org/10.1117/12.319460

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