华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (8): 55-58.

• 机械工程 • 上一篇    下一篇

B 样条二进小波在齿轮轮廓图像处理中的应用

吴上生 方飞村 段富海 苟国华   

  1. 华南理工大学 机械工程学院,广东 广州 510640
  • 收稿日期:2006-07-13 出版日期:2007-08-25 发布日期:2007-08-25
  • 通信作者: 吴上生(1963-) ,男,副教授、博士,主要从事机器视觉、机械自动化、专用机械装备研究. E-mail:shshwu@scut. edu. cn
  • 作者简介:吴上生(1963-) ,男,副教授、博士,主要从事机器视觉、机械自动化、专用机械装备研究.

Application of B-Spline Binary Wavelet Transform to Profile Image Processing of Gear

Wu Shang-sheng  Fang Fe i-cun  Duan Fu-hai  Gou Guo-hua   

  1. School of Mechanical Engineering , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2006-07-13 Online:2007-08-25 Published:2007-08-25
  • Contact: 吴上生(1963-) ,男,副教授、博士,主要从事机器视觉、机械自动化、专用机械装备研究. E-mail:shshwu@scut. edu. cn
  • About author:吴上生(1963-) ,男,副教授、博士,主要从事机器视觉、机械自动化、专用机械装备研究.

摘要: 利用三阶B 样条函数来构造样条小波,结合二维离散二进小波的多孔算法及其Matlab 软件编程,实现模极大边缘检测.对基于样条小波的模极大边缘检测算法与传统的Canny 算法进行理论和实现效果上的比较,发现模极大边缘检测算法的效果明显好于Canny 算法,当平滑尺度j=3 时效果更好,可获得清晰的齿轮轮廓图形,解决了传统边缘检测算法效果差、识别价值低的问题.

关键词: 齿轮, 图像处理, 边缘检测, 小波Canny 算法

Abstract:

In this paper , a spline wavelet is designed by using the cubic B-spline function and is then combined with the A'trous arithmetic of the 2D discrete binary wavelet and its Matlab programming to realize the edge detection of modular maximum. The proposed edge detection method based on the spline wavelet is theoretically and experimentally compared with the traditional Canny operator. It is found that the proposed method is of higher detection efficiency and can successfully solve the problems caused by the traditional edge detection method. An even better and clearer gear profile is obtained at a smoothing scale of j = 3.

Key words: gear, image processing, edge detection, wavelet, Canny operator