| 数码相机拍摄的透视文本图像的校正 |
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| 引用本文： | 贺志明. 数码相机拍摄的透视文本图像的校正[J]. 上海工程技术大学学报, 2007, 21(3): 260-264. DOI: 10.3969/j.issn.1009-444X.2007.03.016 |
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| 作者姓名： | 贺志明 |
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| 作者单位： | 上海工程技术大学,电子电气工程学院,上海,201620 |
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| 摘 要： | 提出了一种数码相机拍摄的透视文本图像的校正方法.文字区潜在的文本框,它在透视文本图像中是一个凸四边形,它对应于原文本中的是一个矩形.应用这种凸四边形与矩形的对应关系可以确定透视变换的单应矩阵,应用该单应矩阵实现对透视文本图像的校正.实验结果表明该方法是有效的.
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| 关 键 词： | 透视文本图像 校正 单应矩阵 |
| 文章编号： | 1009-444X（2007）03-0260-05 |
| 收稿时间： | 2007-08-02 |
| 修稿时间： | 2007-08-02 |
Rectification of Perspective Document Image Captured by Digital Camera |
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| HE Zhi-ming. Rectification of Perspective Document Image Captured by Digital Camera[J]. Journal of Shanghai University of Engineering Science, 2007, 21(3): 260-264. DOI: 10.3969/j.issn.1009-444X.2007.03.016 |
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| Authors: | HE Zhi-ming |
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| Affiliation: | College of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China |
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| Abstract: | A rectification method of perspective document image captured by the digital camera was proposed.The potential text margin in the perspective document image is a convex quadrilateral and in the oringinal document is a rectangle.The relation between the convex quadrilateral and the rectangle was used to determine a homographic matrix.The perspective document image was rectified by the homographic matrix.The efficiency is shown by experimental results. |
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| Keywords: | perspective document image rectification homographic matrix |
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