Description: Fingerprint Enhancement Using STFT Analysis
The quality of fi ngerprint encountered during verifi cation varies over a wide range
as shown in Figure 1. It is estimated that roughly 10 of the fi ngerprint encountered
during verifi cation can be classifi ed as ’poor’ [1]. Poor quality fi ngerprints lead to
generation of spurious minutiae. In smudgy regions, genuine minutiae may also be
lost, the net effect of both leading to loss in accuracy of the matcher
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