DocumentCode :
810941
Title :
Algorithm for enhancing fingerprint images
Author :
Sherlock, B.G. ; Monro, D.M. ; Millard, K.
Author_Institution :
Saint Louis Univ., Cahotia, IL, USA
Volume :
28
Issue :
18
fYear :
1992
Firstpage :
1720
Lastpage :
1721
Abstract :
An original algorithm is presented for the high-quality enhancement of fingerprint images. Fingerprints are directionally smoothed using a position-dependent Fourier domain filter whose orientation is everywhere matched to the local ridge orientation. Thresholding then yields the enhanced image. Use of the proposed enhancement method within a working AFIS significantly improves speed and accuracy.
Keywords :
computerised picture processing; filtering and prediction theory; AFIS; automated fingerprint identification system; directional smoothing; fingerprint image enhancement algorithm; local ridge orientation; position-dependent Fourier domain filter;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19921093
Filename :
158538
Link To Document :
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