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《Journal of Anhui Normal University(Natural Science)》 2010-06
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Study on the Method of City Road Extraction Based on the Center Green Belt

GUO Yan-feng1,2,ZHA Liang-song1,HUANG Da-peng2,DONG Zhang-yu1(1.Key Laboratory of GIS,AnHui Normal University,Wuhu 241003,China;Institute of Geographical Sciences and Natural Resources,Chinese Academy of Sciences,Beijing 100101,China)  
By taking streets of Hefei city as a case study,a new approach to road extraction from IKONOS imagery based on the center green belt is presented in this paper.The approach begins with vegetation index extraction.And the edge detection methods are performed to extract the green belt outline.Then the shape index and area threshold are performed to remove noise.Finally,buffer analysis and overlay analysis are used to extract road information completely.The results show that the approach of road extraction based on the center green belt is simple to operate and has an important promotional value for road extraction in urban remote sensing.
【Fund】: 国家自然科学基金(40771207);; 安徽省普通高校人文社会科学重点研究基地项目(07sk109zd)
【CateGory Index】: U418.9
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