TY - GEN
T1 - The Viterbi algorithm at different resolutions for enhanced iris segmentation
AU - Sutra, Guillaume
AU - Garcia-Salicetti, Sonia
AU - Dorizzi, Bernadette
PY - 2012/10/3
Y1 - 2012/10/3
N2 - We propose in this paper a novel method for iris segmentation. In order to retrieve iris contours, the Viterbi algorithm is applied on the gradient map of images processed by Anisotropic Smoothing. The Viterbi algorithm is exploited at two resolutions: at a high resolution, it allows finding precise contours, while at a low resolution, coarse contours that improve the accuracy of normalization circles are retrieved. We tested the method on several databases (ICE 2005, NDIRIS-0405, Casia-V3-Interval). Our extensive experiments on such databases lead to performance at the state of the art, while the proposed method does not require a refined parameter adaptation to the various degradations encountered.
AB - We propose in this paper a novel method for iris segmentation. In order to retrieve iris contours, the Viterbi algorithm is applied on the gradient map of images processed by Anisotropic Smoothing. The Viterbi algorithm is exploited at two resolutions: at a high resolution, it allows finding precise contours, while at a low resolution, coarse contours that improve the accuracy of normalization circles are retrieved. We tested the method on several databases (ICE 2005, NDIRIS-0405, Casia-V3-Interval). Our extensive experiments on such databases lead to performance at the state of the art, while the proposed method does not require a refined parameter adaptation to the various degradations encountered.
U2 - 10.1109/ICB.2012.6199825
DO - 10.1109/ICB.2012.6199825
M3 - Conference contribution
AN - SCOPUS:84866788874
SN - 9781467303941
T3 - Proceedings - 2012 5th IAPR International Conference on Biometrics, ICB 2012
SP - 310
EP - 316
BT - Proceedings - 2012 5th IAPR International Conference on Biometrics, ICB 2012
T2 - 2012 5th IAPR International Conference on Biometrics, ICB 2012
Y2 - 29 March 2012 through 1 April 2012
ER -