Research on fingerprint enhancement and classification algorithm

In this paper, because Gabor filter has the optimum connection resolution ratio of the time and frequency field and its good band-pass, Gabor filter is used to filter the noise of fingerprint images with low quality. The ridge voting algorithm is presented to get ridge structure of fingerprint image...

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Bibliographic Details
Published inThe Fourth International Conference onComputer and Information Technology, 2004. CIT '04 pp. 199 - 204
Main Authors Yuan-Ning Liu, Zhi-Hui Li
Format Conference Proceeding
LanguageEnglish
Published IEEE 2004
Subjects
Band pass filters
Classification algorithms
Data mining
Fingerprint recognition
Frequency
Gabor filters
Image matching
Image resolution
Signal to noise ratio
Voting
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Summary:In this paper, because Gabor filter has the optimum connection resolution ratio of the time and frequency field and its good band-pass, Gabor filter is used to filter the noise of fingerprint images with low quality. The ridge voting algorithm is presented to get ridge structure of fingerprint images, based on which the direction information of fingerprint images is extracted, and the image is enhanced by use of direction information. At the same time, based on K. Karu's (1996) classification model of core and delta, its applicable condition and physical meaning is analyzed, and the topologic structure and characteristic is considered, moreover, the strict constraint condition and relevant concept, definition are created in our paper. Its correctness is enunciated in theory, and fingerprint experiment results verify the validity and correctness of the previous enhancement and classification algorithm.
ISBN:0769522165
9780769522166
DOI:10.1109/CIT.2004.1357197