东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (9): 1240-1243.DOI: -

• 论著 • 上一篇    下一篇

基于圆分割的鱼眼镜头图像畸变校正算法

张琨;王翠荣;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60273078)

Correction algorithm of fish-eye lens image distortion based on the circle segmentation approach

Zhang, Kun (1); Wang, Cui-Rong (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Zhang, K.
  • About author:-
  • Supported by:
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摘要： 针对应用鱼眼镜头拍摄的图像产生了严重的畸变的问题,提出了一种基于圆分割的校正算法.该算法充分利用了鱼眼图像圆形结构这一特点,将其分割成同心圆,再利用函数法对畸变图像进行校正.微调系数的引入,使得算法更灵活,这样能根据鱼眼镜头与实际物体的距离来调整微调系数的大小,得到更理想的校正图像.Matlab实验结果表明:应用本算法能得到比较满意的校正结果,并且该算法所花费的计算时间少,使其能适用于实时监控系统.

关键词: 鱼眼镜头, 图像畸变, 圆分割, 校正算法, 微调系数

Abstract: For the severe distortion problem of fish-eye lens images, a correction algorithm based on circle segmentation approach was proposed. The circular structure of the fish-eye image features is extensively used in the algorithm and the image is split into concentric circles, then the function method is used to adjust image distortion. A tuning coefficient is introduced to make the algorithm more flexible. The distance between the fish-eye lens and the actual object is considered to adjust the size of tuning coefficient such that a better corrected image is obtained. Matlab experimental results show that the algorithm can achieve satisfactory adjustment results and the calculation of the algorithm takes less time, so that it can be applied to real-time monitoring systems.

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