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Enhanced Ridge Structure for Improving Fingerprint Image Quality Based on a Wavelet Domain | IEEE Journals & Magazine | IEEE Xplore

Enhanced Ridge Structure for Improving Fingerprint Image Quality Based on a Wavelet Domain


Abstract:

Fingerprint image enhancement is one of the most crucial steps in an automated fingerprint identification system. In this paper, an effective algorithm for fingerprint im...Show More

Abstract:

Fingerprint image enhancement is one of the most crucial steps in an automated fingerprint identification system. In this paper, an effective algorithm for fingerprint image quality improvement is proposed. The algorithm consists of two stages. The first stage is decomposing the input fingerprint image into four subbands by applying two-dimensional discrete wavelet transform. At the second stage, the compensated image is produced by adaptively obtaining the compensation coefficient for each subband based on the referred Gaussian template. The experimental results indicated that the compensated image quality was higher than that of the original image. The proposed algorithm can improve the clarity and continuity of ridge structures in a fingerprint image. Therefore, it can achieve higher fingerprint classification rates than related methods can.
Published in: IEEE Signal Processing Letters ( Volume: 22, Issue: 4, April 2015)
Page(s): 390 - 394
Date of Publication: 01 October 2014

ISSN Information:


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