吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 183-188.

• 论文 • 上一篇    下一篇

基于相位相关的图像匹配算法

赵宏伟, 刘宇琦, 程禹, 刘君玲   

  1. 吉林大学计算机科学与技术学院, 长春 130022
  • 收稿日期:2010-11-03 出版日期:2011-09-01 发布日期:2011-09-01
  • 通讯作者: 刘宇琦(1984 ),男,硕士研究生.研究方向:图像处理与模式识别.E-mail:liuyuq@jlu.edu.cn. E-mail:liuyuq@jlu.edu.cn
  • 作者简介:赵宏伟(1962 ),男,教授.博士生导师.研究方向:智能信息系统与眠人式技术.E-mail:zhaohw@ jlu.edu.cn.
  • 基金资助:

    吉林省自然科学基金项目(20101504);吉林省教育厅科学基金项目(2009604)

Phase correlation-based image matching algorithm

ZHAO Hong-wei, LIU Yu-qi, CHENG Yu, LIU Jun-ling   

  1. College of Computer Science and Technology, Jilin University, Changchun 130012, China
  • Received:2010-11-03 Online:2011-09-01 Published:2011-09-01

摘要:

为了有效提高图像匹配算法的速度和精度,提出了一种基于相位相关的图像匹配算法。该算法先将基准图像和目标图像进行对数极坐标变换并提取变换后图像的轮廓作为特征区域;然后对两幅图像的轮廓区域分别进行距离轴和角度轴方向上的投影,最后通过比较投影分量的大小确定两者是否匹配。为了降低对整幅图像进行计算所带来的计算耗时,提出了一种分步采样的方法。实验结果表明,该算法执行速度快,抗噪声、压缩能力较强,当目标图像相对宿主图像发生旋转、缩放的变化时,仍能较准确地完成两者之间的匹配工作。

关键词: 图像处理技术, 图像匹配, 对数极坐标变换, 距离轴, 角度轴

Abstract:

In order to effectively improve the speed and accuracy of the image matching algorithm,this paper proposed an image matching algorithm.First,in order to get the contour of the image which can be used as the feature area,the Log-polar transformation was carried on on the reference image and the target image respectively.Then,project the contour area on the orientations of distance axis and angle axis separately.Finally,compare the projection value to determine whether the images match.In order to reduce the computation time which is brought by calculating the whole image,this paper proposed a method of sampling by step.Experiment results show that,this algorithm executes quickly,and it is robust on resisting the noise or JPEG compression.The images can be matched accurately,though the target image is rotated or zoomed relatively to the reference image.

Key words: image processing, image matching, log-polar transform, distance axis, angle axis

中图分类号: 

  • TP391


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