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Remote Sensing Technology and Application  2011, Vol. 26 Issue (2): 226-232    DOI: 10.11873/j.issn.1004-0323.2011.2.226
Simulation Analysis of GCP Residuals in the Remote Sensing Image Registration
WANG Jiang-hao1,2,GE Yong1
(1.State Key Laboratory of Resources and Environment Information System,Institute of Geographic
Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China; 
2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China)
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Prior to multiple\|sources remote sensing data analysis and applications,a quality assessment of geometric correction or registration is needed.Traditional position accuracy assessment is root\|mean\|square error (RMSE),which is easy to calculate.However,it can not describe the spatial distribution characteristics of GCP residuals after geometric correction or registration.In this paper,cross validation is employed here to overcome traditional RMSE limitations.Furthermore,to assess the spatial characteristics of GCP residuals,Moran's I is adopted to test the spatial independent of GCP residuals,and standard deviational ellipse is introduced to measure the distribution trend and investigated the spatial isotropy or anisotropy for a set of GCP residuals points.Simulation experiments show that with the aid of those measurements,it can be insight into the principle of transformation function and help users to select an appropriate correction model to improve both accuracy of remote sensing image geometric correction.

Key words:  Cross validation      Morans I      Standard deviational ellipse      Residual analysis      Geometric correction     
Received:  10 September 2010      Published:  25 July 2011
TP 75  
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WANG Jiang-hao,GE Yong. Simulation Analysis of GCP Residuals in the Remote Sensing Image Registration. Remote Sensing Technology and Application, 2011, 26(2): 226-232.

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