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A novel iris segmentation using radial-suppression edge detection
Huang J.1; You X.1; Tang Y.Y.1; Du L.1; Yuan Y.3
2009-12-01
Source PublicationSignal Processing
ISSN01651684
Volume89Issue:12Pages:2630-2643
AbstractIris segmentation is a key step in the iris recognition system. The conventional methods of iris segmentation are based on the assumption that the inner and outer boundaries of an iris can be taken as circles. The region of the iris is segmented by detecting the circular inner and outer boundaries. However, we investigate the iris boundaries in the CASIA-IrisV3 database, and find that the actual iris boundaries are not always circular. In order to solve this problem, a new approach for iris segmentation based on radial-suppression edge detection is proposed in this paper. In the radial-suppression edge detection, a non-separable wavelet transform is used to extract the wavelet transform modulus of the iris image. Then, a new method of radial non-maxima suppression is proposed to retain the annular edges and simultaneously remove the radial edges. Next, a thresholding operation is utilized to remove the isolated edges and produce the final binary edge map. Based on the binary edge map, a self-adaptive method of iris boundary detection is proposed to produce final iris boundaries. Experimental results demonstrate that the proposed iris segmentation is desirable. © 2009 Elsevier B.V. All rights reserved.
KeywordIris segmentation Non-separable wavelet transform Radial-suppression edge detection
DOI10.1016/j.sigpro.2009.05.001
URLView the original
Language英語
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被引频次[WOS]:31   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题University of Macau
Affiliation1.Huazhong University of Science and Technology
2.Hong Kong Baptist University
3.Aston University
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Huang J.,You X.,Tang Y.Y.,et al. A novel iris segmentation using radial-suppression edge detection[J]. Signal Processing,2009,89(12):2630-2643.
APA Huang J.,You X.,Tang Y.Y.,Du L.,&Yuan Y..(2009).A novel iris segmentation using radial-suppression edge detection.Signal Processing,89(12),2630-2643.
MLA Huang J.,et al."A novel iris segmentation using radial-suppression edge detection".Signal Processing 89.12(2009):2630-2643.
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