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Reducing Intra-class Variations of Deformed Iris Recognition System

Based on previous researches, it has been demonstrated that different pupil dilation of same eye is one of the factors that lead to negative impact on iris recognition performance. This work proposes the use of three-different-database scheme for reducing intra-class variation of iris recognition system having different pupil dilation size. Experimental on the CASIA-Iris-Lamp database indicate performance improvement when three-different-database scheme is used for matching iris images with different pupil sizes.