2007 IEEE International Conference on Image Processing - San Antonio, Texas, U.S.A. - September 16-19, 2007

Technical Program

Paper Detail

Paper:MP-P5.11
Session:Biometrics III: Fingerprints, Iris, Palmprints
Time:Monday, September 17, 14:30 - 17:10
Presentation: Poster
Title: PALMPRINT VERIFICATION USING COMPLEX WAVELET TRANSFORM
Authors: Lei Zhang; The Hong Kong Polytechnic University 
 Zhenhua Guo; The Hong Kong Polytechnic University 
 Zhou Wang; University of Texas at Arlington 
 David Zhang; The Hong Kong Polytechnic University 
Abstract: Palmprint is a unique and reliable biometric characteristic with high usability. With the increasing demand of automatic palmprint authentication systems, the development of accurate and robust palmprint verification algorithms has been attracting a lot of interests. The relative translation, rotation and distortion between two palmprint images will introduce much error in palmprint matching. However, an accurate registration of palmprint images is too time-consuming. In this paper, we propose a modified complex wavelet structural similarity index (CW-SSIM) to compute the matching score and hence identify the input palmprint. Since CW-SSIM is robust to translation, small rotation and distortion, a fast rough alignment of palmprint images is sufficient. CW-SSIM is also insensitive to luminance and contrast changes. Our experimental results show that the proposed scheme outperforms the state-of-the-art methods by achieving a higher genuine acceptance rate and a lower false acceptance rate simultaneously.



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