中文字符数转模清晰度研究  

Research on the Technology of COM Concentrated on the Field of Chinese Characters

作　　者：李晓明[1] 

机构地区：[1]国家图书馆,北京100081

出　　处：《图书馆建设》2016年第8期91-94,100,共5页Library Development

基　　金：2015年度国家文化科技提升计划项目"中文字符数转模技术研究"的成果之一;项目编号:2015-05

摘　　要：中、英文字符在结构、数量、字体等方面存在差异,相较来说,中文字符需要的线对数要求更高。数转模技术结合中文字符的特征,以文字使用频率和笔画复杂度为遴选依据,确定中文典型字符。以中文典型字符为研究对象,采用缩微影像可读性质量分析、文字光学等级测算和实验验证等方法进行分析,有助于厘清解像力、缩率与字符高度等要素的关系,提出数转模技术对被拍摄中文字符高度的要求。中文字符数转模工作的顺利开展,有利于保证文献拍摄清晰度符合要求,实现对文献的保护。Chinese characters need higher logarithmic demand for the differences in structure, amount and font features between Chinese and English characters. The technology of COM（Computer Output Microfilm） determines typical Chinese characters by combining the features of Chinese characters, and using the frequency and the complexity of the strokes as the selection basis.It is helpful to analyze the relationship of resolution, shrinkage and text height, and determine the requirements in height of the Chinese characters in technology of COM to take typical Chinese characters as research object, and analysing by readability quality estimation method, text optical grade calculations and experimental verification methods.The development of COM would protect the documents and ensure the film clarity of the documents.

关 键 词：数转模 光学等级 中文字符 解像力 

分 类 号：G255.72[文化科学—图书馆学]