基于二次样条小波的文档图像基线自动提取

Proceedings of the Fourth International Conference on Document Analysis and Recognition Pub Date : 1997-08-18 DOI:10.1109/ICDAR.1997.620596

Y. Tang, Jiming Liu, Lihua Yang

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引用次数: 5

摘要

提出了一种基于小波变换的图像边缘检测方法。基于小波理论对文档图像进行局部分析，提出了一种新的文档处理边缘检测方法，包括提取字符轮廓和提取具有灰度等级的表单文档图像中的参考线。该方法利用了二次样条小波。已经联系了实验人员。实验结果表明了二次样条小波在边缘检测中的有效性，特别是在文档处理中提取参考线和图像边界。

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Quadratic spline wavelet approach to automatic extraction of baselines from document images

The paper presents a wavelet based approach to edge detection in document processing. According to local analysis of the document images using wavelet theory, a novel method is developed to detect the edges in document processing, including extraction of the contours of characters and extraction of the reference lines in the form document images with gray levels. In this method, the quadratic spline wavelet is utilized. Experiments have been contacted. The positive results show the effectiveness of the application of the quadratic spline wavelet to edge detection, especially to extract the reference lines and image boundaries in document processing.

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Proceedings of the Fourth International Conference on Document Analysis and Recognition

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