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http://dx.doi.org/10.5391/JKIIS.2007.17.5.632

A Robust Watermarking Algorithm using Wavelet for Biometric Information  

Lee, Wook-Jae (충북대학교 전기전자컴퓨터공학부)
Lee, Dae-Jong (충북대학교 BK21 충북정보기술사업단)
Moon, Ki-Young (한국전자통신연구원 정보보호연구단 바이오인식기술 연구팀)
Chun, Myung-Geun (충북대학교 전기전자컴퓨터공학부)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.17, no.5, 2007 , pp. 632-639 More about this Journal
Abstract
This paper presents a wavelet-based watermarking algorithm to securely hide biometric features such as face and fingerprint and effectively extract them with less distortion of the concealed data. To hide the biometric features, we proposed a determination method of insert location based on wavelet transform and adaptive weight method according to the image characteristics. The hidden features are effectively extracted by applying the inverse wavelet transform to the watermarked image. To show the effectiveness, we analyze the various performance such as PSNR and correlation of watermark features before and after applying watermarking. Also, we evaluate the effect of watermaking algorithm with respect to biometric system such as recognition rate. Recognition rate shows 98.67% for multimodal biometric systems consisted of face and fingerprint. From these, we confirm that the proposed method makes it possible to effectively hide and extract the biometric features without lowering recognition rate.
Keywords
Watermarking; Biometric information; Wavelet;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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