| 一种用于辅助导航的快速图像匹配方法 |
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| 引用本文： | 吴政,冯燕,陈武.一种用于辅助导航的快速图像匹配方法[J].计算机仿真,2009,26(10):237-240. |
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| 作者姓名： | 吴政 冯燕 陈武 |
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| 作者单位： | 西北工业大学电子信息学院; |
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| 摘 要： | 为了提高辅助导航中多传感器图像匹配的精确性和实时性,首先提取图像的边缘特征,并用3-4距离变换(3-4DT)方法对边缘二值图像进行变换,以变换后的边缘距离图像为匹配特征;针对传统Hausdorff距离的局限性提出了一种融合点集重合数的Hausdorff距离,并以之为相似性度量;搜索策略根据人眼视觉系统的机制采用一种由远到近的分层匹配方法,同时使用一种改进的实数编码遗传算法来加快底层图像匹配的速度。实验结果为平均匹配时间为1283m s,平均误差值为1.036,表明匹配方法能满足导航要求。
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| 关 键 词： | 辅助导航 图像匹配 距离变换 遗传算法 |
A Rapid Image Matching Approach for Auxiliary Navigation |
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| WU Zheng,FENG Yan,CHEN Wu.A Rapid Image Matching Approach for Auxiliary Navigation[J].Computer Simulation,2009,26(10):237-240. |
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| Authors: | WU Zheng FENG Yan CHEN Wu |
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| Affiliation: | College of Electronics and Information;Northwestern Polytechnical University;Xi'an Shanxi 710072;China |
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| Abstract: | To improve the velocity and accuracy of multi-sensor image matching in auxiliary navigation,after the edge feature of image is extracted,a 3-4DT method is applied to transform the edge binary image,then the transformed edge distance image is taken as the matching feature.A Hausdorff distance integrating points set coincidence numbers(I-HD) is proposed to overcome the limitation of traditional Hausdorff distance,and I-HD can be used as the similarity measure.On the basis of the human visual system,a far-near... |
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| Keywords: | Auxiliary navigation Image matching DT Genetic algorithm |
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