| 基于相位相关和自适应阈值的图像亚像素配准 |
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| 引用本文： | 张凌,赵永强,张洪才,杨铁恒.基于相位相关和自适应阈值的图像亚像素配准[J].火力与指挥控制,2009,34(9). |
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| 作者姓名： | 张凌 赵永强 张洪才 杨铁恒 |
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| 作者单位： | 西北工业大学自动化学院,陕西,西安,710072 |
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| 基金项目： | 国家自然科学基金，遥感科学国家重点实验室开放基金，西北工业大学英才计划，西北工业大学科技创新资助项目 |
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| 摘 要： | 针对图像的亚像素配准问题,提出了一种基于相位相关和自适应阈值技术来计算图像间平移参数的方法.先通过传统的相位相关技术得到图像间的整数平移参数,接着引入由整数平移参数自适应确定的阈值来消除相位相关矩阵的主导奇异向量中相应的高频部分,最后使用主导奇异向量剩下的部分来估计非整平移参数.实验结果证实了这一方法具有较高的配准精度和鲁棒性.
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| 关 键 词： | 图像配准 亚像素配准 相位相关 自适应阈值 |
Image Subpixel Registration based on Phase Correlation and Adaptive Threshold |
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| ZHANG Ling,ZHAO Yong-qiang,ZHANG Hong-cai,YANG Tie-heng.Image Subpixel Registration based on Phase Correlation and Adaptive Threshold[J].Fire Control & Command Control,2009,34(9). |
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| Authors: | ZHANG Ling ZHAO Yong-qiang ZHANG Hong-cai YANG Tie-heng |
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| Institution: | College of Automation;Northwestern Polytechnical University;Xi'an 710072;China |
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| Abstract: | This paper presents a method based on the phase correlation and adaptive threshold techniques to estimate the lateral shifts between similar images for performing image registration to subpixel accuracy.Firstly two integral pixel translation parameters are identified by the popular phase correlation technique.Then adaptive thresholds calculated by the integral pixel translation are used to mask the high frequency components in two dominant singular vectors of the phase correlation matrix.Finally a estimatio... |
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| Keywords: | image registration subpixel alignment phase correlation adaptive threshold |
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