Abstract
This paper presents an efficient iris segmentation algorithm. This paper uses an improved circular Hough transform to detect inner boundary and the circular integro-differential operator to detect the outer boundary of iris from a given eye image. Search space of the standard circular Hough transform is reduced from three dimensions to only one dimension, which is the radius. Local gradient information is used to improve time and efficiency of Hough transform. This algorithm has been tested on the publicly available CASIA 3.0 Interval database consisting of 2639 images of 249 subjects and CASIA 4.0 Lamp database consisting of 16,212 images of 411 subjects. It also provides error categorization for wrong segmentation, as well as a study on parametric influences on error. Parameterized error analysis helps to set parameters intelligently boosting up the segmentation accuracy as high as 99.8% on the Interval database and 99.7% on the Lamp database.
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© 2012 Springer-Verlag Berlin Heidelberg
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Bendale, A., Nigam, A., Prakash, S., Gupta, P. (2012). Iris Segmentation Using Improved Hough Transform. In: Huang, DS., Gupta, P., Zhang, X., Premaratne, P. (eds) Emerging Intelligent Computing Technology and Applications. ICIC 2012. Communications in Computer and Information Science, vol 304. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31837-5_59
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DOI: https://doi.org/10.1007/978-3-642-31837-5_59
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31836-8
Online ISBN: 978-3-642-31837-5
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