李欣, 杨宇辉, 杨博, 尹峰. 利用方向相位特征进行多源遥感影像匹配[J]. 武汉大学学报 ( 信息科学版), 2020, 45(4): 488-494. DOI: 10.13203/j.whugis20180445
引用本文: 李欣, 杨宇辉, 杨博, 尹峰. 利用方向相位特征进行多源遥感影像匹配[J]. 武汉大学学报 ( 信息科学版), 2020, 45(4): 488-494. DOI: 10.13203/j.whugis20180445
LI Xin, YANG Yuhui, YANG Bo, YIN FENG. A Multi-source Remote Sensing Image Matching Method Using Directional Phase Feature[J]. Geomatics and Information Science of Wuhan University, 2020, 45(4): 488-494. DOI: 10.13203/j.whugis20180445
Citation: LI Xin, YANG Yuhui, YANG Bo, YIN FENG. A Multi-source Remote Sensing Image Matching Method Using Directional Phase Feature[J]. Geomatics and Information Science of Wuhan University, 2020, 45(4): 488-494. DOI: 10.13203/j.whugis20180445

利用方向相位特征进行多源遥感影像匹配

A Multi-source Remote Sensing Image Matching Method Using Directional Phase Feature

  • 摘要: 针对较大的非线性辐射特性差异导致不同谱段、不同载荷获取的多源遥感影像之间匹配难度较大的问题,提出一种利用方向相位特征进行多源遥感影像匹配的方法。该方法首先利用角点提取算子对参考影像均匀提取特征点,然后利用Log-Gabor滤波器在多个方向上计算影像的相位特征图像,在此基础上对特征点构建密集特征描述向量并采用滑动窗口的方式来确定匹配点对,最后利用一定阶数的泰勒级数将匹配结果精度拟合到子像素级。利用3组真实的异源遥感影像进行实验,结果表明,该方法在光学影像、红外影像、多光谱影像和合成孔径雷达(synthetic aperture radar,SAR)影像之间均能匹配到稳定可靠的同名点。

     

    Abstract: A multi-source remote sensing image matching method using directional phase feature is proposed to solve the problem of matching multi-source remote sensing images with nonlinear radiometric differences. Firstly, feature points of reference image are extracted uniformly. And then phase congruency energy images in multiple directions are calculated using Log-Gabor filters. Dense character descriptions of feature points of the reference image are built. Finally, correspondences are obtained by sliding matching window and Taylor series expansion is used to fit to the sub pixel accuracy. Experiments on three groups of real heterogeneous remote sensing images show that the proposed method can achieve stable and reliable matching results on optical, infrared, multi-spectral and SAR (synthetic aperture radar)images.

     

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