汉字笔迹鉴别中预处理算法实现

山东大学学报(工学版)

汉字笔迹鉴别中预处理算法实现

李莹，宋刚

山东大学信息科学与工程学院，山东济南 250100

收稿日期:2006-10-09 修回日期:1900-01-01 出版日期:2007-04-24 发布日期:2007-04-24
通讯作者: 李莹

Preprocessing algorithms for Chinese handwriting recognition

LI Ying，SONG Gang

Department of Information Science and Engineering，Shandong University，Jinan 250100，China

Received:2006-10-09 Revised:1900-01-01 Online:2007-04-24 Published:2007-04-24
Contact: LI Ying

摘要/Abstract

摘要： 针对自由格式的手写体汉字，提出一套系统完整的笔迹图像预处理算法，其中我们将汉字宽度的统计特性与高斯分布的特性结合进行粘连字的滤除，然后根据粘连字的投影图中波谷点的位置，选择某一阈值作为最佳切分点将其分割开来，从而很容易实现了字符大小的归一化、汉字的任意拼接和行倾斜的校正.该算法使得整个预处理子系统更加稳定与完善，为后续的笔迹鉴别提供了可靠的保证.

关键词: 笔迹鉴别, 预处理, 高斯分布

Abstract: A series of complete and systematic algorithms on preprocessing of handwriting image is proposed for freeformat handwritten Chinese characters . The connected character removing is carried out by combining statistical characteristic of characters width with the gauss distribution. According to the location of valley point on projecting images, a threshold value is selected as best division point resulting to the easy realization of size normalizing, character mosaicand line slope correction. The proposed methods make the whole preprocessing subsystem more stable and perfect, which lay a dependable foundation for subsequent handwriting recognition.

Key words: preprocessing, gauss distribution , handwriting identification

中图分类号:

TP391.12

李莹,宋刚 . 汉字笔迹鉴别中预处理算法实现[J]. 山东大学学报(工学版), 2007, 37(2): 80-83 .

LI Ying,SONG Gang . Preprocessing algorithms for Chinese handwriting recognition[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(2): 80-83 .

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