Skew detection in document images based on rectangular active contour
文献类型：期刊论文
| 作者 | Fan HJ(范慧杰) ; Zhu LL(朱琳琳); Tang YD(唐延东)
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| 刊名 | INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION
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| 出版日期 | 2010 |
| 卷号 | 13期号:4页码:261-269 |
| 关键词 | Skew detection Active Contour Model Level set Shape constraint Content region detection |
| ISSN号 | 1433-2833 |
| 产权排序 | 1 |
| 中文摘要 | The digitalization processes of documents produce frequently images with small rotation angles. The skew angles in document images degrade the performance of optical character recognition (OCR) tools. Therefore, skew detection of document images plays an important role in automatic document analysis systems. In this paper, we propose a Rectangular Active Contour Model (RAC Model) for content region detection and skew angle calculation by imposing a rectangular shape constraint on the zero-level set in Chan-Vese Model (C-V Model) according to the rectangular feature of content regions in document images. Our algorithm differs from other skew detection methods in that it does not rely on local image features. Instead, it uses global image features and shape constraint to obtain a strong robustness in detecting skew angles of document images. We experimented on different types of document images. Comparing the results with other skew detection algorithms, our algorithm is more accurate in detecting the skews of the complex document images with different fonts, tables, illustrations, and layouts. We do not need to pre-process the original image, even if it is noisy, and at the same time the rectangular content region of a document image is also detected. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Computer Science, Artificial Intelligence |
| 研究领域[WOS] | Computer Science |
| 关键词[WOS] | ALGORITHM |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000284778100002 |
| 公开日期 | 2012-05-29 |
| 源URL | [http://ir.sia.cn/handle/173321/7407]  |
| 专题 | 沈阳自动化研究所_机器人学研究室 |
| 推荐引用方式 GB/T 7714 | Fan HJ,Zhu LL,Tang YD. Skew detection in document images based on rectangular active contour[J]. INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION,2010,13(4):261-269. |
| APA | Fan HJ,Zhu LL,&Tang YD.(2010).Skew detection in document images based on rectangular active contour.INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION,13(4),261-269. |
| MLA | Fan HJ,et al."Skew detection in document images based on rectangular active contour".INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION 13.4(2010):261-269. |
入库方式： OAI收割
来源：沈阳自动化研究所
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