TY - JOUR
T1 - An approach to fingerprint filter design
AU - O'Gorman, Lawrence
AU - Nickerson, Jeffrey V.
PY - 1989
Y1 - 1989
N2 - A procedure for filter design is described for enhancing fingerprint images. The procedure consists of five main steps: user-specification of appropriate image features, determination of local ridge orientations throughout the image, smoothing of this orientation image, pixel-by-pixel image enhancement by application of oriented, matched filter masks, and post-processing to reduce background and boundary noise. The contribution of this work is to quantify and justify the functional relationships between image features and filter parameters so that the design process can be easily modified for different conditions of noise and scale. Application of the filter shows good ridge separation and continuity, and background noise reduction.
AB - A procedure for filter design is described for enhancing fingerprint images. The procedure consists of five main steps: user-specification of appropriate image features, determination of local ridge orientations throughout the image, smoothing of this orientation image, pixel-by-pixel image enhancement by application of oriented, matched filter masks, and post-processing to reduce background and boundary noise. The contribution of this work is to quantify and justify the functional relationships between image features and filter parameters so that the design process can be easily modified for different conditions of noise and scale. Application of the filter shows good ridge separation and continuity, and background noise reduction.
KW - Fingerprint enhancement
KW - Matched filtering
KW - Spatial filter design
UR - http://www.scopus.com/inward/record.url?scp=0024862171&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024862171&partnerID=8YFLogxK
U2 - 10.1016/0031-3203(89)90035-6
DO - 10.1016/0031-3203(89)90035-6
M3 - Article
AN - SCOPUS:0024862171
SN - 0031-3203
VL - 22
SP - 29
EP - 38
JO - Pattern Recognition
JF - Pattern Recognition
IS - 1
ER -