An approach to fingerprint filter design
Pattern Recognition
On-Line Fingerprint Verification
IEEE Transactions on Pattern Analysis and Machine Intelligence
Systematic Methods for the Computation of the Directional Fields and Singular Points of Fingerprints
IEEE Transactions on Pattern Analysis and Machine Intelligence
Constrained nonlinear models of fingerprint orientations with prediction
Pattern Recognition
Fingerprint orientation field estimation using ridge projection
Pattern Recognition
A model-based method for the computation of fingerprints' orientation field
IEEE Transactions on Image Processing
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Although many algorithms have been proposed for orientation field estimation, the results are not so satisfactory and the computational cost is expensive In this paper, a novel algorithm based on straight-line model of ridge is proposed for the orientation field estimation The algorithm comprises four steps, preprocessing original fingerprint image, determining the primary and secondary ridges of fingerprint foreground block using the top semi-neighbor searching algorithm, estimating block direction based on straight-line model of such a primary ridge and correcting the spurious block directions Experimental results show that it achieves satisfying estimation accuracy with low computational time expense.