Information Technology Journal1812-56381812-5646Asian Network for Scientific Information10.3923/itj.2011.2133.2139LiYi-bo ZhangSen-yue 1120111011It is feasible that the computer vision technology applied for reading mechanical meter. It solves the "human error" of power systems and achieves the smooth transition to automatic meter reading system. In order to achieve effective segmentation of showing numerals with high noise and broken strokes, the study proposes an improved Snake algorithm of double centers of gravity and uses it in numerals segmentation with high noise and broken strokes. The algorithm achieves the expected results. According to the general characteristics of Arabic numerals of mechanical Meter, the algorithm introduces external force of double centers of gravity into Snake model and regards the foreground points’ proportion of control points neighborhood as Snake model’ energy function and adopts a new zigzag algorithm to realize the smooth of detailed contour . It showed that the algorithm achieved an effective segmentation. Experimental results showed that the algorithm has overcome the traditional Snake algorithm’s deficiency of extracting the contour of Arabic numerals and achieves approximation of smoothing big depression of Snake algorithm; it has stronger inhibitory effect on the noise. The algorithm correctly completes numerals segmentation with high noise and broken strokes and has a high practical value.]]>Casey, R.G. and E. Lecolinet,1996Gang, L., D. Xiaoqing, P. Liangrui and L. Changsong,2002Hanyu, H., G. Qiang, Z. Xiuhua, Z. Yan and L. Zhimin,2008Boggs, W. and M. Boggs,2002Wang, L.W., Y. Yang, B. Xie and Y. Yang,2004Shou, C.T.,2002Zhong, H., H. Liu and X.S. Jiang,2006Yanling, L. and Y. Zhang,2006Eckhorn, R., H.J. Reitboeck, M. Arndt and P. Dicke,1990Tan, Y.F., R.C. Nie, D.M. Zhou and D.F. Zhao,2008Mallat, S. and W.L. Hwang,1992Mallat, S. and S. Zhong,1992Shuling, Z. and Z. Xiaohua,2000Ye, S., Q. Sun and E. Chang,2004Jianzhong, W., J. Zhao, and H. Zhang,2004Yang, W., S. Wanli and S. Guoxiang,2004Shan,W. and L. Baoqing,2007Wanpeng, C., C. Rensheng and Y. Dong,2007Kass, M., A. Witkin and D. Terzopoulos,1987Marr, D. and E. Hildreth,1980