中文

Journal of Applied Sciences ›› 2004, Vol. 22 ›› Issue (2): 191-194.

• Articles • Previous Articles     Next Articles

Sub-Pixel Edge Detection Based on Spatial Moment and Zernike Moment

DING Xing-hao1, DENG Shan-xi2, YANG Yong-yue2, ZHAO Qian-cheng2   

  1. 1. Department of Electronic Engineering, Xiamen University, Xiamen 361005, China;
    2. School of Instrumentation, Hefei University of Technology, Hefei 230009, China
  • Received:2002-09-21 Revised:2003-03-25 Online:2004-06-30 Published:2004-06-30

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Abstract: The theories of spatial moment and Zernike moment are presented. An edge model with four parameters has been built and the relations between edge parameters and the two moments are analyzed respectively. The values of edge parameters are calculated to get the edge image. The method can locate edges to sub-pixel.

Key words: sub-pixel, edge location, spatial moment, Zernike moment, edge detection

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