NDLI: Combining Gabor filtering and classification dictionaries learning for fingerprint enhancement

Content Provider	IET Digital Library
Author	Ding, Shifei Bian, Weixin Liao, Hongmei Sun, Tongfeng Xue, Yu
Abstract	This study presents a new method for enhancing fingerprint image. The process of the enhancement is divided into two phases: fingerprint is first enhanced using Gabor filtering and then the enhanced fingerprint can be further enhanced by using sparse representation with the priori information of ridge pattern based on classification dictionaries learning. In the second stage, first, the orientations of fingerprint patches are estimated by the weighted linear projection analysis and the quality of patches are evaluated by the coherence of point orientations. Second, the training patches are classified into eight groups based on their own orientations, and the training samples of each class are selected from candidate patches by their own quality. The corresponding classification dictionaries are learned in frequency domain. Finally, the fingerprint image is enhanced based on spectra diffusion by using classification dictionaries learning. The experiments are carried out using various fingerprint enhancement methods. The experiments show that the proposed method achieves better results in comparison with other methods, and can significantly improve the performance of automatic fingerprint identification system.
Starting Page	438
Ending Page	447
Page Count	10
ISSN	20474938
Volume Number	6
e-ISSN	20474946
Issue Number	Issue 6, Nov (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-bmt/6/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-bmt.2016.0161
Journal	IET Biometrics
Publisher Date	2017-04-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Automatic Fingerprint Identification System Classification Dictionaries Learning Computer Vision And Image Processing Technique Fingerprint Identification Fingerprint Image Enhancement Fingerprint Patch Orientations Frequency Domain Frequency Domain Analysis Gabor Filtering Image Classification Image Enhancement Image Recognition Image Representation Mathematical Analysis Performance Improvement Ridge Pattern Sparse Representation Spectra Diffusion Training Patch Classification Weighted Linear Projection Analysis
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Vision and Pattern Recognition Software

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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