DNU-I Multi-national Offline Chinese Handwritten Database of Dalian Nationalities University
WU Bao-chun · Dalian Minzu Xueyuan xuebao · 2011
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.