Title :
An approach to dynamic fingerprint image enhancement
Author :
Wei, Liu ; Pu-Liu, Yan ; De-Ling, Xia ; Cong, Zhou
Author_Institution :
Coll. of Electron. Inf., Wuhan Univ., China
Abstract :
A new algorithm of fingerprint enhancement is presented. Gabor filter and oriented filter are used to enhance the fingerprint images in two steps. First a dynamic 2-D Gabor filter is used to separate the conglutinated ridgelines, and then a well-defined oriented filter is used to joint the ruptured ridgelines and clean up the valleys. The new method is not sensitive to the offset and the rotation of fingerprint image, and easy to realize. The experiments show good performance.
Keywords :
filtering theory; fingerprint identification; image enhancement; conglutinated ridgeline; dynamic 2D Gabor filter; dynamic fingerprint image enhancement; well-defined oriented filter; Civil engineering; Educational institutions; Electronic mail; Feature extraction; Fingerprint recognition; Frequency; Gabor filters; Image matching; Noise reduction; Spatial filters;
Conference_Titel :
Image and Graphics (ICIG'04), Third International Conference on
Conference_Location :
Hong Kong, China
Print_ISBN :
0-7695-2244-0
DOI :
10.1109/ICIG.2004.33
