指纹预处理中的一种新方法
发布时间：2019-03-06 18:23
【摘要】：本文提出了一种基于指纹方向图和直方图均衡的新方法——块方向增强法。它将图像增强中最简单的直方图均衡法和指纹图像的方向图结合起来 ,在合适的图像块内进行方向增强 ,能够快速、有效地去除指纹采集中边被破坏引入的噪音。仿真结果表明 ,该方法对断点和叉连噪音都有很好的去除作用 ,减少了假特征点的产生 ,从而可以大大提高指纹识别的速度和准确性
[Abstract]:In this paper, a new method based on fingerprint pattern and histogram equalization, block direction enhancement method, is proposed. It combines the simplest histogram equalization method in image enhancement with the direction image of fingerprint image, and enhances the direction in the appropriate image block. It can quickly and effectively remove the noise caused by edge destruction in fingerprint acquisition. The simulation results show that the proposed method has a good effect on removing breakpoints and forks and even noise, and reduces the generation of false feature points. Therefore, the speed and accuracy of fingerprint identification can be greatly improved.
【作者单位】： 吉林大学南岭校区信息学院!长春130025 吉林大学南湖校区计算机系!长春130012 吉林大学南岭校区信息学院!长春130025
【分类号】：D918.91
本文编号：2435790
[Abstract]:In this paper, a new method based on fingerprint pattern and histogram equalization, block direction enhancement method, is proposed. It combines the simplest histogram equalization method in image enhancement with the direction image of fingerprint image, and enhances the direction in the appropriate image block. It can quickly and effectively remove the noise caused by edge destruction in fingerprint acquisition. The simulation results show that the proposed method has a good effect on removing breakpoints and forks and even noise, and reduces the generation of false feature points. Therefore, the speed and accuracy of fingerprint identification can be greatly improved.
【作者单位】： 吉林大学南岭校区信息学院!长春130025 吉林大学南湖校区计算机系!长春130012 吉林大学南岭校区信息学院!长春130025
【分类号】：D918.91
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