下载后可任意编辑自由手写体数字识别系统的设计与实现戴建辉信息科学与工程学院, 电子信息工程系指导老师: 吴谨摘要: 本文论述并设计实现了一个脱机自由手写体数字识别系统。文中首先对待识别数字的预处理进行了介绍, 包括二值化、 平滑滤波、 法律规范化、 细化等图像处理方法; 其次, 探讨了如何提取数字字符的结构特征和笔划特征, 并详细地描述了知识库的构造方法; 最后采纳了以知识库为基础的模板匹配识别方法,并以MATLAB 作为编程工具实现了具有友好的图形用户界面的自由手写体数字识别系统。实验结果表明, 本方法具有较高的识别率, 并具有较好的抗噪性能。关键词: 手写体数字; 预处理; 模式识别; 特征提取Abstrct: This paper describes and designs a free handwritten number recognition system. Firstly,the pretreatment of the character to be recognized is introduced, including binarization, smoothing, normalization and thinning. Next, how to extract the structural features of the numbers is discussed, and we describe the constructing method of repository. Finally, we use the method of template matching, based on repository, to recognize the digital number. Matlab is used as a program tool to realize this free handwritten digital recognition system with friendly graphical user interface. The experimental results show that the rate of the recognition system is high, and the proposed method is robust to noise.Keywords: handwritten number; pretreatment; pattern 下载后可任意编辑recognition; feature extraction 1 引言OCR( Optical Character Recognition) 即光学字符识别技术, 是经过扫描仪把印刷体或手写体文稿扫描成图像, 然后识别成相应的计算机可直接处理的字符。OCR 是模式识别的一个分支, 按字体分类主要分为印刷体识别和手写体识别两大类。对于印刷体识别又能够分成单一字体单一字号和多种字体多种字号几类。而手写体识别又可分为受限手写体和不受限手写体两类; 按识别方式可分为在线识别和脱机识别两类。字符识别处理的信息可分为两大类: 一类是文字信息, 处理的主要是用各国家、 各民族的文字( 如: 汉字, 英...
