| 摘要: |
| 提出了一种用于字符预分类的模糊逻辑分析法.对文本字符作印刷结构分析,给出了一个带有 容差分析的文本行字符基线精确测定算法,其他有效参考线则是通过聚类分析而获得.模糊逻 辑用于确定各字符类的隶属值以保证字符的正确预分类.实验结果表明,这种模糊印刷字符预 分类法在SUN 4/490工作站上每秒可有效地处理104以上字符,并对不同大小的字符和不同 字体的处理结果令人满意. |
| 关键词: 字符预分类,印刷归类,基线测定,模糊逻辑,模糊分类. |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到国家自然科学基金(No.7870012)和江苏省教委留学回国人员科研基金( No.1997-15-51)资助. |
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| A Character Preclassification Method Based on Fuzzy Structure Analysi s of Typographical Characters |
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LU Da,XIE Ming-pei,PU Wei
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| Abstract: |
| In this paper, a new fuzzy-logic approach is presented for character preclassif ication which gives a precise calculation method for the baseline detection algo rithm with tolerance analysis through analyzing the typographical structure of t extual blocks. Other virtual reference lines are extracted with clustering techn ique. In order to ensure correct character preclassification, a fuzzy-logic app roach is used to assign a membership to each typographical category for ambiguou s classes. The results prove that the proposed fuzzy typographical analysis for character preclassification is able to process to more than 10000 characters per second on a SUN 4/490 workstation and the method has been tested for different font sizes and different types with satisfaction. |
| Key words: Character preclassification, typographical categorization, baseline detection, f uzzy logic, fuzzy classification. |
