| 鲁棒Hausdorff距离在SAR/惯性组合导航图像匹配中的应用研究 |
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| 引用本文： | 冷雪飞,刘建业,熊智,邢广华.鲁棒Hausdorff距离在SAR/惯性组合导航图像匹配中的应用研究[J].东南大学学报(自然科学版),2004(Z1). |
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| 作者姓名： | 冷雪飞 刘建业 熊智 邢广华 |
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| 作者单位： | 南京航空航天大学自动化学院 南京210016
(冷雪飞，刘建业，熊智)，南京航空航天大学自动化学院 南京210016(邢广华) |
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| 基金项目： | 国防科技预研跨行业基金资助项目 (5 14 0 90 40 2 0 1HK0 2 0 6) . |
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| 摘 要： | 分析了适用于SAR景象匹配辅助导航系统的图像匹配算法的特点 ,提出了一种新型Hausdorff距离的鲁棒型图像匹配算法 .首先分析了传统的Hausdorff距离算法的不足 ,然后引入了一种能有效消除高斯噪声影响的新算法 .同时针对此算法图像匹配时全局搜索的不足 ,提出了扫描终止法技术 ,以有效解决图像匹配实时性的问题 .针对高斯噪声的大小对图像匹配的影响进行了仿真实验 .仿真结果表明 ,新图像匹配算法能大大提高合成孔径雷达图像的匹配精度和实时性 ,对组合导航系统的精度提高有重要的意义 ,是一种行之有效的方法 .
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| 关 键 词： | Hausdorff距离 合成孔径雷达(SAR) 组合导航 图像匹配 |
Image matching based on robust Hausdorff distance in SAR/INS inte grated navigation system |
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| Leng Xuefei,Liu Jianye,Xiong Zhi,Xing Guanghua.Image matching based on robust Hausdorff distance in SAR/INS inte grated navigation system[J].Journal of Southeast University(Natural Science Edition),2004(Z1). |
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| Authors: | Leng Xuefei Liu Jianye Xiong Zhi Xing Guanghua |
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| Abstract: | Based on the characters adapted to the SAR image matching in navigation system, a new robust Hausdorff distance image matching algorithm is proposed. The limita tions of conventional Hausdorff distance measures are analyzed and a new algorit hm which can eliminate the Gaussian noise in image is presented. Aiming at the glob al search shortage in image matching, a scan termination method is also proposed to solve the real-time problem. The effect of Gaussian noise on image matching was simulated and the results show that the proposed algorithm is more efficien t than the conventional ones, and can also improve the integrated navigation sys tem accuracy. |
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| Keywords: | Hausdorff distance systhetic aperture radar (SAR) integrated navigation image matching |
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