摘要
提出了一种基于凸集投影轮廓的透视文本灭点探测方法.通过构建d邻域连接成分的凸集,并对这些凸集进行投影轮廓分析,可以快速确定水平灭点.在探测到水平灭点的基础上,对文本全部前景像素凸集的投影轮廓分析,可以快速探测到垂直灭点.试验结果表明该方法是有效的.
A method was proposed for vanishing points detection of perspective documents based on projection profiles of convex sets.By constructing convex sets of the d-neighbor connected components,projection profiles of the convex sets were analyzed,the horizontal vanishing point can be determined quickly.Based on the detection of horizontal vanishing point,the projection profiles of convex set on all the document foreground pixels were analyzed,and the vertical vanishing point can also be detected quickly.The experimental result shows that the method is effective.
出处
《上海工程技术大学学报》
CAS
2013年第2期166-169,共4页
Journal of Shanghai University of Engineering Science
关键词
凸集
灭点
透视文本
convex set
vanishing point
perspective document
