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Remote Sensing Technology and Application  2010, Vol. 25 Issue (4): 567-573    DOI: 10.11873/j.issn.1004-0323.2010.4.567
Adjacency Effect Correction Study of ASTER Image Based on the Synchronized Measured Spectral Data
WANG Qian1,4,CHEN Xue2,CHEN Jian-ping1 ,4,MA Jian-wen3
1.Institute of Land Resources and High Techniques,China University of Geosciences (Beijing),Beijing 100083,China;2.Institute of Remote Sensing Applications,Chinese Academy of
Sciences,Beijing 100101,China;3.Center for Earth Observation and Digital Earth,Chinese Academy of Sciences,Beijing 100190,China;4.Laboratory of Beijing Land Resources Information
Development,Beijing 100083,China
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In July,2008,during the large\|scale synchronous remote sensing experiment of “WATER:Watershed Airborne Telemetry Experiment Research” in Zhangye district,Gansu province,we did the adjacency effect measurement synchronous with satellite at Lanzhou University grass site,with the device designed by ourselves.The adjacency effect correction coefficient was computed using backward least square algorithm.Then it was imported into the actual reflectance transformation equation to correct the adjacency effect of the synchronous ASTER image.The quality of the result image was improved.Moreover,the result image was analyzed compared with that the SHDOM equation.The result showed that,both the reflectance and normalized difference vegetation index of the result image corrected with the adjacency effect correction coefficient had greater differences,meanwhile the spatial autocorrelation between pixels decreased obviously.〖JP〗

Key words:  Measured spectral data      Adjacency effect correction      SHDOM equation      Image quality     
Published:  21 October 2010
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WANG Qian, CHEN Xue, CHEN Jian-ping, MA Jian-wen. Adjacency Effect Correction Study of ASTER Image Based on the Synchronized Measured Spectral Data. Remote Sensing Technology and Application, 2010, 25(4): 567-573.

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