何海清, 张永军, 黄声享. 相位相关法辅助的重复纹理区低空影像匹配[J]. 武汉大学学报 ( 信息科学版), 2014, 39(10): 1204-1207.
引用本文: 何海清, 张永军, 黄声享. 相位相关法辅助的重复纹理区低空影像匹配[J]. 武汉大学学报 ( 信息科学版), 2014, 39(10): 1204-1207.
HE Haiqing, ZHANG Yongjun, HUANG Shengxiang. Phase Correlation Supported Low Altitude  Images Matching with Repeated Texture[J]. Geomatics and Information Science of Wuhan University, 2014, 39(10): 1204-1207.
Citation: HE Haiqing, ZHANG Yongjun, HUANG Shengxiang. Phase Correlation Supported Low Altitude  Images Matching with Repeated Texture[J]. Geomatics and Information Science of Wuhan University, 2014, 39(10): 1204-1207.

相位相关法辅助的重复纹理区低空影像匹配

Phase Correlation Supported Low Altitude  Images Matching with Repeated Texture

  • 摘要: 针对重复纹理区低空影像匹配中存在的多义性易造成同名点过少或匹配失败等问题利用相位相关法计算了像对中两影像傅立叶变换复共轭的互功率谱预测同名点在平移旋转和尺度上的遍历范围并以尺度遍历范围自适应估计Harris-Laplace尺度空间和检测角点然后通过相关系数法和核线约束匹配同名点实验验证了该方法对于重复纹理区低空影像匹配的可靠性和实用性可获得数量足够且分布均匀的同名点

     

    Abstract: Low altitude  image matching with re peated  texture may have a small amount of  corresponding points  or  beunsuccessful  because of  ambiguous matching.To solve  the problem aphase correlation method supportes  low altitude  aerial  image matching with re peated  texture  is  proposed.The method estimates  the  traversal  range of  corresponding points including translation rotation and scale  space.The  traversal  range is  estimated by a cross -power spectrum of  the  image Fourier transform and a complex  con jugate  of  another  image Fourier transform.Next Harris-Laplace  scale  space  is estimated by the  scale  traversal  range and corners detection.Thencorresponding point matching is  a chieved by a correlation coefficient  and epipolar  constraint.The  experimental  results  show that  the method may be  reliable  and practical  for  low altitude  images matching with a re peated  textureand obtains  enough and well-distributed  corresponding points.

     

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