Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28990
Title: Orientation selection using modified FCM for competitive code-based palmprint recognition
Authors: Yue, F
Zuo, W
Zhang, D 
Wang, K
Keywords: Competitive code
Fuzzy C-means
Gabor filter
Palmprint recognition
Regularization
Issue Date: 2009
Publisher: Elsevier
Source: Pattern recognition, 2009, v. 42, no. 11, p. 2841-2849 How to cite?
Journal: Pattern recognition 
Abstract: Coding-based methods are among the most promising palmprint recognition methods because of their small feature size, fast matching speed and high verification accuracy. The competitive coding scheme, one representative coding-based method, first convolves the palmprint image with a bank of Gabor filters with different orientations and then encodes the dominant orientation into its bitwise representation. Despite the effectiveness of competitive coding, few investigations have been given to study the influence of the number of Gabor filters and the orientation of each Gabor filter. In this paper, based on the statistical orientation distribution and the orientation separation characteristics, we propose a modified fuzzy C-means cluster algorithm to determine the orientation of each Gabor filter. Since the statistical orientation distribution is based on a set of real palmprint images, the proposed method is more suitable for palmprint recognition. Experimental results indicate that the proposed method achieves higher verification accuracy while compared with that of the original competitive coding scheme and several state-of-the-art methods, such as ordinal measure and RLOC. Considering both the computational complexity and the verification accuracy, competitive code with six orientations would be the optimal choice for palmprint recognition.
URI: http://hdl.handle.net/10397/28990
ISSN: 0031-3203
EISSN: 1873-5142
DOI: 10.1016/j.patcog.2009.03.015
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