几种手写体汉字网格方向特征提取法的比较研究.pdfVIP

·38 · 计算机应用研究 2004 年 几种手写体汉字网格方向特征提取法的比较研究 金连文 , 高 　学 (华南理工大学 电子信息学院 , 广东 广州 510641) 摘　要 : 近年来 ,网格方向特征已广泛应用于许多手写体汉字识别系统中,并认为是目前较成熟的手写体汉字 特征之一。网格技术和方向分解是网格方向特征的两个关键技术。方向特征提取方法有许多种并各有优劣。 对几种方向特征提取方法进行了比较研究 ,对其中一些方法进行了改进 ,并将我们提出的局部网格的划分方法 应用到这几种方向分解特征的提取上 ,取得了较好的识别效果。 关键词 : 特征提取 ; 手写体汉字识别 ; 局部弹性网格 ; 方向特征 ( ) 中图法分类号: TP391 　　　文献标识码 : A 　　　文章编号 : 2004 Study of Several Handwritten Chinese Character Directional Feature Extraction Approaches J IN Lianwen , GAO Xue ( ) College of Electronic Information , South China University of Technology , Guangzhou Guangdong 510641 , China Abstract : Recently ,it is found that the directional feature is considered suitable for Chinese character recognition ,and directional fea ture has been widely used as one of the mainstream feature extraction approach. Directional decomposition algorithm and meshing method are two key factors in extraction of directional feature. This paper presents several directional features with different meshing methods for Handwritten Chinese Character Recognition ( HCCR) . Local elastic meshing technology is introduced in this paper ,and it is found that local elastic meshing method is much better than global elastic meshing method. Key words : Feature Extraction ; Handwritten Chinese Character Recognition ( HCCR) ; Local Elastic Meshin