| 表格型票据中框线检测与去除算法 |
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| 引用本文： | 张艳,郁生阳,张重阳,杨静宇.表格型票据中框线检测与去除算法[J].计算机研究与发展,2008,45(5):909-914. |
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| 作者姓名： | 张艳 郁生阳 张重阳 杨静宇 |
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| 作者单位： | 1. 南京理工大学计算机科学与技术学院,南京,210094
2. 上海交通大学图像处理与模式识别研究所,上海,200240 |
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| 基金项目： | 国家自然科学基金
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国家高技术研究发展计划(863计划) |
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| 摘 要： | 字符笔画与表格线的粘连或交叠是表格型票据中普遍存在的现象,严重影响了后期票据自动识别处理的性能.现有方法大多基于二值图像,未能充分利用灰度图中的框线特征.基于票据图像中的框线特征,提出一种表格型票据预处理中的框线检测与去除算法,首先充分利用票据灰度图像的特点准确地检测出框线,再采用一种连通链结构描述叠加后的框线区域,然后对交叠进行判断和标记,根据标记保留字符笔划去除框线干扰.经过实际银行支票图像测试证明了算法的有效性和鲁棒性.
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| 关 键 词： | 文档分析 表格识别 直线检测 连通链结构 框线去除 |
| 修稿时间： | 2007年8月24日 |
Extraction and Removal of Frame Line in Form Bill |
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| Zhang Yan,Yu Shengyang,Zhang Chongyang,Yang Jingyu.Extraction and Removal of Frame Line in Form Bill[J].Journal of Computer Research and Development,2008,45(5):909-914. |
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| Authors: | Zhang Yan Yu Shengyang Zhang Chongyang Yang Jingyu |
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| Affiliation: | Zhang Yan1,Yu Shengyang2,Zhang Chongyang1,, Yang Jingyu1 1(School of Computer Science , Technology,Nanjing University of Science & Technology,Nanjing 210094)2(Institute of Image Processing & Pattern Recognition,Shanghai Jiao Tong University,Shanghai 200240) |
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| Abstract: | In practical form bill images,characters usually overlap with the form frames,which will greatly affect the performance of the document image auto-processing system.Most of the form frame line removal algorithms are based on binary images,which can not make good use of line characteristics in gray images.According to the attribute of financial documents' structure,an improved line detection and removal algorithm applied in financial form image pre-processing is proposed in this paper.In order to reduce the ... |
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| Keywords: | document analysis form recognition line detection chain code frame line removal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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