Fingerprint orientation field estimation using ridge projection

@article{Ji2008FingerprintOF,
  title={Fingerprint orientation field estimation using ridge projection},
  author={Luping Ji and Zhang Yi},
  journal={Pattern Recognition},
  year={2008},
  volume={41},
  pages={1491-1503}
}
Orientation field plays an important role in fingerprint recognition system. This paper proposes a method for estimating four-direction orientation field. It consists of four steps: (i) preprocessing fingerprint image, (ii) determining the primary ridge of fingerprint block using neuron pulses of pulse coupled neural network (PCNN), (iii) estimating block direction by projective distance variance of such a ridge, instead of a full block and (iv) correcting the estimated orientation field… CONTINUE READING
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