期刊文献+

选票图像快速倾斜检测方法

Skew detection method for tradition ballot image based on line slope
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摘要 倾斜检测和校正是图像预处理过程中的重要环节,针对传统纸质选票扫描中的图像倾斜问题,提出一种基于直线斜率的倾斜检测方法。该方法以表格的边缘点为特征点,为每个特征点建立相应的局部斜率特征集,最终形成一个以局部斜率特征集为集合元素的整体斜率特征集。通过先局部后全局的两轮筛选,得出整体斜率特征集内具有全局最大投票数的斜率,从而计算出选票图像的倾斜角度。通过与Hough算法比较,该方法具有速度快,准确性高,鲁棒性强等特点。
出处 《计算机系统应用》 2007年第11期45-49,共5页 Computer Systems & Applications
基金 浙江省自然科学基金(Y106602) 浙江省科技计划资助项目(2005C31010)
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参考文献8

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