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Core-point detection based on edge maps in fingerprint images

[+] Author Affiliations
Guo Cao

Nanjing University of Science and Technology, Computer Science Department, Nanjing, China, 210094

Zhihong Mao

Sun Yat-Sen University, Computer Science Department, Guangzhou, China, 510275

Quan-sen Sun

Nanjing University of Science and Technology, Computer Science Department, Nanjing, China, 210094

J. Electron. Imaging. 18(1), 013013 (February 19, 2009). doi:10.1117/1.3082172
History: Received August 27, 2008; Revised December 22, 2008; Accepted January 07, 2009; Published February 19, 2009; April 29, 2009
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We propose a novel and accurate technique based on edge map for the determination of core points in fingerprint images. An edge map is obtained by detecting the edges on a smoothed orientation map. An edge pixel deletion operation is then performed on the edge map based on gradient information. Last, upper and lower core points can be extracted by analyzing the orientation consistency of a few edge pixels. Experimental results show that the proposed method can effectively detect the core points with high speed for all types of fingerprints.

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Citation

Guo Cao ; Zhihong Mao and Quan-sen Sun
"Core-point detection based on edge maps in fingerprint images", J. Electron. Imaging. 18(1), 013013 (February 19, 2009). ; http://dx.doi.org/10.1117/1.3082172


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