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In fingerprint images, the discontinuous points include cores, deltas, minutiae, and etc. Generally, cores and deltas are applied to fingerprint classification and minutiae are to fingerprint matching. Owing to complicated processes, most researchers developed minutiae extraction algorithm from 500 dpi fingerprint images in the past. Therefore, much time is wasted before minutiae are extracted. Besides,...
Conventional Gabor filter-based approaches are global considerations for the selections of Gabor filters. Owing to fingerprint patterns are full of ridges and valleys; the whole fingerprint can be viewed as the composition of many various local ridge-valley structures. Based on the various local ridge orientations and frequencies, the whole fingerprint is represented by a template of local Gabor filters...
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