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Fingerprint segmentation is one of the first and most integral pre-processing steps for any fingerprint verification system, and it determines the results of fingerprint analysis and recognition. In this paper, we have proposed a novel algorithm for fingerprint segmentation. The fingerprint image gradient are discussed and its application to fingerprint segmentation is presented. Firstly, Gauss filter...
It is still difficult to locate reference point for low-quality fingerprints in fingerprint recognition. In this paper, a novel algorithm based on quadratic B-spline wavelet is proposed to deal with this problem. The main idea of the paper is to make a progressive analysis on the gradient-changing of the orientation field and combine the gradient information at different scales together. Due to multi-scale...
Fingerprint enhancement proceeds by fully utilizing the intrinsic properties of original images to improve the ridges and eliminate the noises. Although Gabor filter is a classical enhancement method, its function may suffer for the low-quality images due to the unreliable orientation and frequency map estimated by conventional approach. In this paper, a new approach has been proposed to estimate...
Fingerprint image segmentation heavily influences the performance of fingerprint verification systems. In recent years, some new methods have been introduced to the image segmenting processing in order to get better disposal results. And most of the proposed algorithms are based on threshold segmentation. In this paper, a novel approach is put forward to segment fingerprint images based on multiple...
A critical and indispensable step of an automatic fingerprint identification system (AFIS) is fingerprint image thinning. many algorithms have been devised and applied trying to obtain one pixel wide and 8 neighbor connected thinning result. In this paper, a method of improving the thinning result through adding eliminate structure templates is proposed. The ZS algorithm is a parallel thinning algorithm...
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