【摘要】 设计并构建了一种记录书写者民族信息的手写体汉字数据库———大连民族学院DNU-Ⅰ型多民族脱机手写体汉字数据库。包括单字库、行文本库和段文本库3个子库。为少数民族汉字书写特征分析、中文文档的行切分、汉字的切分识别、中文文本的无切分识别、笔迹鉴别和签名验证等方面的研究奠定基础,并提供算法的验证平台。同时介绍了字符识别数据库的一般构建流程和数据库图像二值化、归一化、行分割等预处理算法,为少数民族文字数据库的构建提供了技术支撑。更多还原

【Abstract】 An offline Chinese handwritten characters and text database,DNU-Ⅰmulti-national offline Chinese handwritten database of Dalian Nationalities University,has been presented to record the writers’ national information.Dalian Nationalities University has the copyright of the DNU-Ⅰdatabase.The DNU-Ⅰdatabase consists of 3 subsets,the single character dataset,the single line dataset and the paragraph dataset.Each sample of the DNU-Ⅰdatabase recorded the writer’s information,such as his or her name,nationality,gender and education.The proportion of writers from minority nationalities is 60%.The DNU-Ⅰdatabase can be used to conduct written features of minority nationalities,Chinese text line segmentation,Chinese characters segmentation,segmentation-free recognition,writer identification,signature verification and provide benchmark for algorithms comparison.Meanwhile,common construction procedures of character recognition database and the binarization,normalization,and line segmentation methods of character image pre-processing,which can provide technique support for minority nationalities’ written languages,has been introuduceed.更多还原