| Perspective rectification of document images based on morphology | |
Ligang Miao; Silong Peng ; Liang Miao
| |
| 2007 | |
| 会议名称 | 2006 International Conference on Computational Intelligence and Security ICCIAS 2006 |
| 页码 | pp 1805-1808 |
| 会议日期 | 2006/10/3-2006/10/6 |
| 会议地点 | 中国Guangzhou China |
| 摘要 | Documents may suffer from perspective distortion when captured with hand-held digital cameras. A morphology based rectification method is proposed to recoverfronto-parallel views ofperspectively distorted documents images. Firstly we extend the nearestneighbor (NN) clustering technique in document skew rectification to locate the horizontal vanishing point of the text plane. Secondly we partition the image into multiple overlapping blocks centered with the centroid ofeach connected component (CC) andpropose a runlength opening algorithm (RLOA) to compute the local orientation o vertical character stroke (VSB) which is used to locate the document's vertical vanishing point. Finally a three-step hierarchical rectification method is proposed to rectify the distorted images. Experiment results on various types of documents show that the proposed rectification method has achieved accurate recovery ofdocument images. |
| 关键词 | 无 |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.ia.ac.cn/handle/173211/12887 |
| 专题 | 智能制造技术与系统研究中心_多维数据分析（彭思龙）-技术团队 |
| 通讯作者 | Liang Miao |
| 推荐引用方式 GB/T 7714 | Ligang Miao,Silong Peng,Liang Miao. Perspective rectification of document images based on morphology[C],2007:pp 1805-1808. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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