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Real-time fingerprint image enhancement with a two-stage algorithm and block-local normalization [Elektronski vir]Kočevar, Marko, 1984- ...Fingerprint enhancement is a key step in the Automated Fingerprint Identification System. Because of poor quality of a fingerprint the algorithm for feature extraction may extract features ... incorrectly, which affects incorrect fingerprint match and consequently inefficient fingerprint-based identity verification. Fingerprint image enhancement techniques are based on enhancement in spatial domain or in frequency domain or in a combination of both. This article presents a block-local normalization algorithm and a technique for speeding up a two-stage algorithm for low-quality fingerprint image enhancement with image learning, which first enhances a fingerprint image in the spatial domain and then in the frequency domain. The normalization technique includes an algorithm with block-local normalization with different block sizes. Experimental results obtained on a public database FVC2004 showed that the presented normalization technique speeds up and improves a state-of-the-art two-stage algorithm, provides better results in comparison with global and local normalization, and positively affects fingerprint image enhancement, and consequently improves the efficiency of the automated fingerprint identification system.Source: Journal of real-time image processing. - ISSN 1861-8200 (Vol. , no. , Published online 19 July 2014, str. 1-4)Type of material - e-articlePublish date - 2014Language - englishCOBISS.SI-ID - 17967126
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kočevar, Marko, 1984- | 33978 |
Kotnik, Bojan | 21303 |
Chowdhury, Amor | 15341 |
Kačič, Zdravko | 06821 |
Source: Personal bibliographies
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