Improved Fingerprint Enhancement Algorithm Based on Gabor Filter

LIN Ke-zheng; YANG Xue

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Improved Fingerprint Enhancement Algorithm Based on Gabor Filter

更新时间：2026-07-10

- Improved Fingerprint Enhancement Algorithm Based on Gabor Filter
- Vol. 14, Issue 4, Pages: 46-49(2009)
- 作者机构：
  
  哈尔滨理工大学计算机科学与技术学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391.41
- Published：2009
- 稿件说明：
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LIN Ke-zheng, YANG Xue. Improved Fingerprint Enhancement Algorithm Based on Gabor Filter[J]. 2009, 14(4): 46-49.
DOI：

LIN Ke-zheng, YANG Xue. Improved Fingerprint Enhancement Algorithm Based on Gabor Filter[J]. 2009, 14(4): 46-49. DOI：

摘要

使用八方向Gabor滤波器进行指纹图像增强可以取得良好的处理效果

但占用处理时间较长

因此提出一种通过计算方向不一致因子来减少不必要的方向滤波方法.首先针对Gabor滤波器对方向和频率十分敏感问题

综合点方向图和块方向图的优点

通过利用低通滤波来提高方向图的准确性.其次针对滤波时间问题

提出根据方向不一致因子而有选择地进行八方向Gabor滤波.并通过将二维加博滤波转换成一维滤波器组来减少滤波器的复杂度.实验结果表明

该算法能有效提高滤波效果并减少滤波时间.

Abstract

The directional Gabor filter approach is one of the most effective techniques for fingerprint image enhancement

but it cost too much time.In this paper

an improve algorithm for the fingerprints enhancement based on non-coherence factor is presented.First

Gabor filter is sensitive to orientation and frequency.To deal with this problem

we use Low-pass filter to improve the accuracy of orientation image.Second

we propose to use non-coherence factor to choose which block need to used Gabor filters with 8-quanti...

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Related Institution

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哈尔滨理工大学测控技术与通信工程学院

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