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Remote Sensing Technology and Application  2008, Vol. 23 Issue (5): 525-528    DOI: 10.11873/j.issn.1004-0323.2008.5.525
Research on the Method of Extracting Water Body Information |from ASTER Remote Sensing Image
HUANG Hai-bo1,2,ZHAO Ping1,2,CHEN Zhi-ying1,GUO Wei1,2
 (1.Territorial Resources and Tourism,Anhui Normal University,WuHu 241000,China;
2.Key Laboratory of GIS,Anhui Normal University,WuHu 241000,China)
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To take Wuhu in Anhui province for example.Firstly,the author analysed the water body in Wuhu and the spectral characters of the earth's surface,then,summarized every class separability of the water information and the earth's surface in every band of ASTER Remote Sensing Image,after repeated experiments and analysis constructed the extracting model of water body which based on threshold of bands and relation of spectrum:B2>B3,B1+B6<127,B3+B4<54 and B3<24.In the end,the author compared and evaluated the conclusion of extracting model of water body with the conclusion of unsupervised classification,supervised classification and NDVI.The result of experiment indicated that this method is feasible and more simple,but higher demands were needed in the selected samples of the analysing process of spectral characters.

Key words:  ASTER      Water body information extracting      Spectral characters     
Received:  04 June 2008      Published:  07 November 2011
TP 79  
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HUANG Hai-bo,ZHAO Ping,CHEN Zhi-ying,GUO Wei. Research on the Method of Extracting Water Body Information |from ASTER Remote Sensing Image. Remote Sensing Technology and Application, 2008, 23(5): 525-528.

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