Many methods on form document image analysis have been proposed, but few have treated the extraction of logical structure.

近几年来，国内外已提出了许多关于表格文件图象分析的方法，但其中关于表格逻辑结构提取的方法却很少。

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Mathematics morphology USES the structural element that has structure form to detect the morphology of im-age, in order to solve the problem in image processing and analysis.

数学形态学用具有一定形态结构的“结构元素”去度量图像的形态，以解决图像处理和分析问题。

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