文献类型：期刊文献

中文题名：基于扫描圈的字符识别方法

英文题名：A Method of Scan-Circle Recognition in Character Recognition

作者：宋贤霞[1];李玉琴[2]

第一作者：宋贤霞

机构：[1]甘肃中医学院;[2]兰州理工大学

第一机构：甘肃中医药大学

年份：2012

卷号：33

期号：5

起止页码：15

中文期刊名：自动化与信息工程

外文期刊名：Automation & Information Engineering

语种：中文

中文关键词：扫描圈;扫描核;模式匹配;字符识别

外文关键词：Scan-Circle; Scan-Core; Matching Method; Character Recognition

摘要：针对目前对各类文献资料进行数字化识别时,公式无法直接转化为可编辑文本形式的问题,提出一种基于扫描圈的字符识别方法。首先对公式中的各个字符进行识别,然后再确定这些字符之间的关系,以达到公式识别的目的。扫描圈识别是一种以笔划结构分析为基础的字符识别方法,通过搜索将字符中的所有连笔符号转化为四进制的扫描圈,然后从扫描圈中提取字符的不变特征量。以这些特征量为模板,用模式匹配法对字符进行识别,并采用最短距离比较的方法进行匹配,以获得较为精确的识别结果。
In digital identification of the various types of literature, the mathematical expression can not be directly converted into editable text. To solve this problem, we propose a method of character recognition based on scan-circle. First, the various characters in the expressions are identified, and then the relationship between these characters is determined, finally the purpose of the formula identification is achieved. This method for recognition of characters is based on analysis of stroke structure. All of the connective symbols can be transformed into a string consisting solely of symbols of quaternary digits by searching. Then the invariant feature can be extracted from the string. By using the invariant features as templates, the model matching is adopted to recognize the character, then the recognition technique of the minimum distance method is used. Thereby the recognition result is exact.