A Method for Calculating Similarity among Glyphs using Cross Correlation
In this paper, a method for measuring similarity among glyph contours is proposed. A predominance measure of each contour point is defined and computed at the first place, then we adopt cross correlation between glyph contour pairs as the metric of similarity. The proposed method has several attractive properties: firstly, it is invariable to scales and rotations. Secondly, it is automatically normalized. Thirdly, it can be accelerated by FFT algorithm. These characteristics are of great use in many document image processing procedures, especially in applications where small deviations or rotations is a commonplace. Experiments show that our method can effectively figure out degree of similarity among glyph contours.
Tao He Jie Feng Bingfeng Zhou Zhigang Fan Francis Kapo Tse
Institute of Computer Science and Technology, Peking University,Beijing, P.R.China Xerox Corporation, Norwalk, CT, USA
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
126-129
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）