发明授权
US06373970B1 Image registration using fourier phase matching 失效
图像配准使用傅立叶相位匹配

  • 专利标题: Image registration using fourier phase matching
  • 专利标题(中): 图像配准使用傅立叶相位匹配
  • 申请号: US09221729
    申请日: 1998-12-29
  • 公开(公告)号: US06373970B1
    公开(公告)日: 2002-04-16
  • 发明人: Fang DongWeiguo Lu
  • 申请人: Fang DongWeiguo Lu
  • 主分类号: G06K900
  • IPC分类号: G06K900
Image registration using fourier phase matching
摘要:
A method and an apparatus for registering frames of imaging data using Fourier phase matching. Successive image frames of pixel data are processed using an image registration algorithm. Either image frames or the frames after edge detection are transformed into polar-logarithmic coordinates in the frequency domain and the phases of the Fourier transform of the resulting image representations, after inverse Fast Fourier transformation, are matched. The coordinates at the maximum phase difference are used to determine the scaling and rotation parameters needed for image frame registration. The frequency domain representation of one of the image frames is then scaled and rotated using an anti-aliasing algorithm in accordance with those parameters. The phase of the result is matched with the phase of the frequency domain representation of the other image frame to determine the translation parameters needed for image frame registration.
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