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Invention Grant
US08805118B2 Method for automatic alignment of raster data with vector data in a geographic information system 有权
在地理信息系统中自动对齐栅格数据与矢量数据的方法

  • Patent Title: Method for automatic alignment of raster data with vector data in a geographic information system
  • Patent Title (中): 在地理信息系统中自动对齐栅格数据与矢量数据的方法
  • Application No.: US13426284
    Application Date: 2012-03-21
  • Publication No.: US08805118B2
    Publication Date: 2014-08-12
  • Inventor: Xiaqing Wu
  • Applicant: Xiaqing Wu
  • Applicant Address: US CA Mountain View
  • Assignee: Google Inc.
  • Current Assignee: Google Inc.
  • Current Assignee Address: US CA Mountain View
  • Agency: Dority & Manning, P.A.
  • Main IPC: G06K9/32
  • IPC: G06K9/32
Method for automatic alignment of raster data with vector data in a geographic information system
Abstract:
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.
Abstract(Chinese):

本发明涉及用于对准光栅和矢量数据的方法。 在一个实施例中，光栅/矢量对准器接收光栅数据和光栅数据内的特征的近似向量。 栅格/矢量对准器通过沿着近似矢量的方向对光栅数据进行边缘滤波，并通过沿着近似矢量的方向对光栅数据进行平滑滤波来平滑地生成边缘信号。 光栅/矢量对准器将边缘信号和平滑度信号组合成用于生成光栅数据内的特征的平移矢量或信号权重的组合信号。

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