一种新的改进OPTA细化算法  

A new improved OPTA thinning algorithm

作　　者：赵磊[1] 陈琼[1] 陈中[1] 

机构地区：[1]衡阳师范学院计算机系,湖南衡阳421001

出　　处：《计算机应用》2008年第10期2639-2642,共4页journal of Computer Applications

摘　　要：深入研究改进的OPTA细化算法,针对已有算法中存在细化后毛刺较多的问题,提出了一个新的改进OPTA细化算法。该算法在原有细化算法的基础上,根据纹线角度和弯曲方向的不同采用不同的细化顺序,并修改了消除模板,改进了保留模板的去除情况。大量实验表明,该算法在继承原有算法优点的基础上显著地减少了细化后的毛刺,是一种较为理想的细化算法。The improved OPTA thinning algorithm for fingerprint images was studied deeply. A new improved OPTA thinning algorithm was proposed to solve the problem that there is much spur in the after-thinning fingerprint images. In the new algorithm, various thinning orders were used for various line-angle and curve-direction, the remove templates were modified, and the reserve templates were improved. Through lots of experiments, the algorithm has been proved to be a better thinning algorithm, which inherits the advantages and can significantly reduce the spur in the thinning process.

关 键 词：指纹 细化 模板 二值化 毛刺 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]