基于曲线拟合的干涉合成孔径雷达(InSAR)复图像自动配准算法
doi: 10.3724/SP.J.1146.2005.01653
An Image Automatic Registration Algorithm for InSAR Complex Images Based on Curve Fitting
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摘要: 由于乘性噪声和相干斑的存在，干涉合成孔径雷达(InSAR) 复图像对的配准算法比传统的图像配准算法更困难。该文提出了一种基于B-样条曲线拟合和匹配的InSAR复图像对的自动配准算法，能够有效地配准InSAR复图像对。在利用最小二乘法建立配准参数后，应用两步法完成了亚像元级配准。实验结果表明，该算法具有较高的精度和稳健性。Abstract: Due the presence of multiplicative and speckle noise, the method of registering InSAR image is more difficult than traditional image registration methods. In this paper , an automatic InSAR image registration method is presented, based on B-spline curve fitting and matching, that can handle the registration of InSAR image efficiently. After the registration parameters are established by the least square method, a two-step method is applied to registering with sub-pixel accuracy. The experimental results demonstrate the algorithm is of robustness, efficiency and accuracy.
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