| 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 |
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| 引用本文： | 刘宝泉, 冯大政, 李军侠, 武楠. 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[J]. 电子与信息学报, 2007, 29(7): 1666-1669. doi: 10.3724/SP.J.1146.2005.01653 |
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| 作者姓名： | 刘宝泉 冯大政 李军侠 武楠 |
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| 作者单位： | 西安电子科技大学雷达信号处理重点实验室,西安,710071;西安电子科技大学雷达信号处理重点实验室,西安,710071;西安电子科技大学雷达信号处理重点实验室,西安,710071;西安电子科技大学雷达信号处理重点实验室,西安,710071 |
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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。
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| 关 键 词： | SAR B-样条曲线拟合 配准 曲线匹配 亚像元级 |
| 文章编号： | 1009-5896（2007）07-1666-04 |
| 收稿时间： | 2005-12-22 |
| 修稿时间： | 2005-12-222006-07-10 |
An Image Automatic Registration Algorithm for InSAR Complex Images Based on Curve Fitting |
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| Liu Bao-quan, Feng Da-zheng, Li Jun-xia, Wu Nan . An Image Automatic Registration Algorithm for InSAR Complex Images Based on Curve Fitting[J]. Journal of Electronics & Information Technology, 2007, 29(7): 1666-1669. doi: 10.3724/SP.J.1146.2005.01653 |
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| Authors: | Liu Bao-quan Feng Da-zheng Li Jun-xia Wu Nan |
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| Affiliation: | National Lab. for Radar Signal Processing, Xidian University, Xi’ an 710071, China |
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| 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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| Keywords: | SAR B-spline curve fitting Registration Curve matching Sub-pixel accuracy |
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