一种将圆形区域转化为矩形区域的圆形密封配准方法

Jisheng Liang, Wei Li, Hui Wang, Z. Yuan
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引用次数: 1

摘要

目前,圆形印章的登记复杂,不够精确。本文提出了一种将圆形密封变成矩形密封的密封校直方法。这种方法可以使注册过程简单。该方法首先将印章图像从二维数据转换为一维数据。因此,将圆形密封件沿图像半径展开成矩形,即可得到该密封件的矩形图像。其次,对矩形图像进行纵向一维投影。最后,以2 π为圆,通过计算预留密封与被试密封的一维投影差,得到预留密封与被试密封之间的挠度角。实验结果表明,与传统方法相比,该方法获得了较高的精度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A circular seal registration method by transforming the round region into rectangular region
At present, the registration of the circular seal is complex and not precise enough. This paper proposes a method for seal alignment by turning a circular seal to a rectangular seal. This method can make the registration process simple. First, this method transforms seal images from two-dimensional data into one-dimensional data. Therefore the circular seal along the radius of the image is spread out into a rectangular form and the rectangular image of this seal can be obtained. Second, longitudinal one-dimensional projection of the rectangular image is performed. Finally, the deflection angle between the reserved seal and the tested seal is obtained by calculating the difference between the one-dimensional projections of the reserved seal and the tested seal with 2 π being the circle. The experimental results show that this method obtained highly accuracy results compared with the traditional method.
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