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测绘学报  2015 

利用空白区域骨架线网眼匹配多源面状居民地

DOI: 10.11947/j.AGCS.2015.20140462, PP. 927-935

Keywords: 多源居民地匹配,空白区域,骨架线网眼,匹配转化,对偶图,极化变换,层次分析法

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Abstract:

多源大比例尺城市地图中,同名居民地数据间往往存在较大几何位置偏差,从而增加了居民地匹配的难度和不确定性。针对这一问题,本文提出了一种利用空白区域骨架线网眼进行居民地匹配的新方法。首先,提取空白区域骨架线,并建立空白区域骨架线网眼和居民地之间的一一映射关系,将居民地匹配转换为骨架线网眼匹配;然后,根据骨架线网眼之间的相接拓扑关系构建对偶图,计算对偶图中每个节点的各项中心性指标,并利用极化变换和层次分析法建立骨架线网眼匹配模型,获取骨架线网眼匹配结果;最后,将骨架线网眼匹配结果按照映射关系进行传递,从而得到居民地匹配结果。将居民地匹配转换为空白区域骨架线网眼匹配,并对骨架线网眼进行对偶图构建和极化变换,为匹配增加拓扑约束和相对位置约束,从而弥补几何位置的较大偏差对匹配造成的影响。对比试验及分析表明本方法能够有效解决大比例尺城市地图中几何位置偏差较大的面状居民地的匹配问题。

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