发明名称 Method for automatic alignment of raster data with vector data in a geographic information system
摘要 The present invention relates to methods for aligning raster and vector data. In an embodiment, a raster/vector aligner receives raster data and an approximate vector of a feature within the raster data. The raster/vector aligner generates an edge signal by edge filtering the raster data along a direction of the approximate vector and a smoothness signal by smoothness filtering the raster data along a direction of the approximate vector. The raster/vector aligner combines the edge signal and the smoothness signal into a combined signal which is used to generate a translation vector or a signal weight for the feature within the raster data.
申请公布号 US7869667(B1) 申请公布日期 2011.01.11
申请号 US20070655292 申请日期 2007.01.19
申请人 GOOGLE INC. 发明人 WU XIAQING
分类号 G06K9/54 主分类号 G06K9/54
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