Fingerprint Image Enhancement Using GWT And DMF

摘要：

Fingerprint image enhancement is an essential preprocessing step in fingerprint recognition applications.In this paper we introduce an approach that extracts simultaneously orientation and frequency of local ridge in the fingerprint image by Gabor wavelet filter bank and use them in Gabor Filtering of image. Furthermore, we describes a robust approach to fingerprint image enhancement, which is based on integration of Gabor Filters and Directional Median Filter(DMF).ln fact, Gaussian-distributed noises are reduced effectively by Gabor Filters and impulse noises by DMF. the proposed DMF not only can finish its original tasks, it can also join broken fingerprint ridges, fill out the holes of fingerprint images, smooth irregular ridges as well as remove some annoying small artifacts between ridges. Experimental results sbow our method to be superior to those described in the literature.

关键词： Fingerprints Enhancement Gabor Filter Gabor Wavelet Directional Median Filter

作者: Mehdi Keshavarz Bahaghighat Javad mohammadi Rohollah Akbari

作者单位: Computer department Raja University of Qazvin Qazvin , Iran Electrical department Azad university of Takestan Takestan , Iran Electrical and Computer department Azad University of Qazvin Qazvin,Iran

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 253-257

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）