Journal ArticleDOI
A model-based method for the computation of fingerprints' orientation field
Reads0
Chats0
TLDR
A model-based method for the computation of orientation field estimation that has a robust performance on different fingerprint images and shows that the performance of a whole fingerprint recognition system can be improved by applying this algorithm instead of previous orientation estimation methods.Abstract:
As a global feature of fingerprints, the orientation field is very important for automatic fingerprint recognition. Many algorithms have been proposed for orientation field estimation, but their results are unsatisfactory, especially for poor quality fingerprint images. In this paper, a model-based method for the computation of orientation field is proposed. First a combination model is established for the representation of the orientation field by considering its smoothness except for several singular points, in which a polynomial model is used to describe the orientation field globally and a point-charge model is taken to improve the accuracy locally at each singular point. When the coarse field is computed by using the gradient-based algorithm, a further result can be gained by using the model for a weighted approximation. Due to the global approximation, this model-based orientation field estimation algorithm has a robust performance on different fingerprint images. A further experiment shows that the performance of a whole fingerprint recognition system can be improved by applying this algorithm instead of previous orientation estimation methods.read more
Citations
More filters
Journal ArticleDOI
Latent Palmprint Matching
Anil K. Jain,Jianjiang Feng +1 more
TL;DR: This work proposes a latent-to-full palmprint matching system that is needed in forensics and uses minutiae as features and a robust algorithm to estimate ridge direction and frequency in palmprints facilitates minutia extraction even in poor quality palmprints.
Journal ArticleDOI
A Fingerprint Orientation Model Based on 2D Fourier Expansion (FOMFE) and Its Application to Singular-Point Detection and Fingerprint Indexing
Yi Wang,Jiankun Hu,D. Phillips +2 more
TL;DR: The proposed fingerprint orientation model based on 2D Fourier expansions (FOMFE) in the phase plane does not require prior knowledge of singular points (SPs) and is able to describe the overall ridge topology seamlessly, even for noisy fingerprints.
Journal ArticleDOI
Altered Fingerprints: Analysis and Detection
TL;DR: Experimental results show the feasibility of the proposed approach in detecting altered fingerprints and highlight the need to further pursue this problem.
Journal ArticleDOI
Orientation Field Estimation for Latent Fingerprint Enhancement
TL;DR: Experimental results on the challenging NIST SD27 latent fingerprint database and an overlapped latent fingerprints database demonstrate the advantages of the proposed orientation field estimation algorithm over conventional algorithms.
Journal ArticleDOI
Design and implementation of Log-Gabor filter in fingerprint image enhancement
TL;DR: Experimental results show that the proposed Log-Gabor filtering method can effectively improve the fingerprint image quality and promote the reliability of fingerprint identification.
References
More filters
Book
Statistical Analysis of Circular Data
TL;DR: This book presents a meta-modelling framework for analysing two or more samples of unimodal data from von Mises distributions, and some modern Statistical Techniques for Testing and Estimation used in this study.
Book
Biometrics: Personal Identification in Networked Society
TL;DR: This book covers the general principles and ideas of designing biometric-based systems and their underlying tradeoffs, and the exploration of some of the numerous privacy and security implications of biometrics.
Journal ArticleDOI
On-line fingerprint verification
TL;DR: An improved version of the minutia extraction algorithm proposed by Ratha et al. (1995), which is much faster and more reliable, is implemented for extracting features from an input fingerprint image captured with an online inkless scanner and an alignment-based elastic matching algorithm has been developed.
Journal ArticleDOI
Filterbank-based fingerprint matching
TL;DR: A filter-based fingerprint matching algorithm which uses a bank of Gabor filters to capture both local and global details in a fingerprint as a compact fixed length FingerCode and is able to achieve a verification accuracy which is only marginally inferior to the best results of minutiae-based algorithms published in the open literature.
Journal ArticleDOI
An identity-authentication system using fingerprints
TL;DR: The design and implementation of a prototype automatic identity-authentication system that uses fingerprints to authenticate the identity of an individual is described and an improved minutiae-extraction algorithm is developed that is faster and more accurate than the earlier algorithm.