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《Science of Surveying and Mapping》 2011-03
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Analyse and study of visualization method on DEM errors

QI Xiao-fei①,WANG Guang-xia①,CUI Xiu-fei②,LI Zhi-yuan③(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②65014 Troops,Shenyang 110027,China;③68011 Troops,Lanzhou 730020,China)  
The visualization technology offers an effective means to research the errors of DEM.At present,the methods of DEM error visualizations include error map methods,contour registration methods,two dimension graph methods and multi-dimensional visualization methods etc.Due to the multi-source of the DEM error,it is an emergent problem that how to differentiate and use visualization methods correctly.Thus,this paper researched on the development and applications of the key technology of DEM error visualization,and based on the Circular Parallel Coordinates methods it merged the DEM error.It brought forward a visualization method to deal with the multi-factor error relations,which could offer a reference for further researching DEM error.
【CateGory Index】: P208
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