| 一种新的基于互信息的图像配准方法 |
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| 引用本文： | 洪明坚,吕建斌,杨丹,毛有力.一种新的基于互信息的图像配准方法[J].重庆大学学报(自然科学版),2009,32(6):697-700. |
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| 作者姓名： | 洪明坚 吕建斌 杨丹 毛有力 |
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| 作者单位： | 洪明坚(重庆大学软件学院,重庆,400030);吕建斌,杨丹(重庆大学期刊社,重庆,400030);毛有力(四川大学数学学院,四川成都,610064)
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| 基金项目： | 国家青年自然科学基金资助项目，重庆市自然科学基金资助项目 |
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| 摘 要： | 针对目前基于互信息图像配准方法中存在的不足,提出结合图像二维信息(如轮廓和边缘)与互信息的图像配准算法.它首先利用小波多尺度积提取两幅图像的特征点及其角度信息,再根据得到的特征点和角度信息,定义了特征点对互信息匹配准则,得到相应的匹配点对.最后进行了仿真实验,并将结果与由相关度、对齐度准则得到的结果进行比较,所提出的算法匹配误差最小.结果表明该算法具有匹配精确、鲁棒性好和效率高等优点.
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| 关 键 词： | 图像配准 特征点 互信息 多尺度积 |
| 收稿时间： | 2009/2/20 0:00:00 |
A new method for image registration based on mutual information |
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| HONG Ming-jian,Lv Jian-bin,YANG Dan and MAO You-li.A new method for image registration based on mutual information[J].Journal of Chongqing University(Natural Science Edition),2009,32(6):697-700. |
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| Authors: | HONG Ming-jian Lv Jian-bin YANG Dan and MAO You-li |
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| Institution: | 1a.School of Software Engineering;b.Journal Department;Chongqing University;Chongqing 400030;P.R.China;2.College of Mathematics;Sichuan University;Chengdu 610064;P.R.China |
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| Abstract: | To address the disadvantages of mutual information-based image registration,a new method for image registration is proposed that combines image edges with mutual information to form a new matching criterion.In this method,feature points as well as their orientation are extracted using wavelet multi-scale products and the mutual information mapping criteria for the feature points is defined to obtain the matching points.The experimental results show that this method yields the minimum matching error compared... |
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| Keywords: | image registration feature point mutual information multi-scale product |
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