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In this paper, we proposed an efficient multiresolution decomposition framework for iris texture feature extraction, which has superior directionality and localized frequency partition. It consists of an improved circular symmetric filter bank followed by a directional filter bank. In our iris recognition system, we adopt a novel non-polar coordinate normalization strategy as iris preprocessing method...
An improved artificial fish swarm algorithm (IAFSA) is proposed, and its complexity is much less than the original algorithm (AFSA) because of a new proposed fish behavior. Based on IAFSA, two novel algorithms for data clustering are presented. One is the improved artificial fish swarm clustering (IAFSC) algorithm, the other is a hybrid fuzzy clustering algorithm that incorporates the fuzzy c-means...
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