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Proceedings Paper

Gaze estimation for off-angle iris recognition based on the biometric eye model
Author(s): Mahmut Karakaya; Del Barstow; Hector Santos-Villalobos; Joseph Thompson; David Bolme; Christopher Boehnen
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Paper Abstract

Iris recognition is among the highest accuracy biometrics. However, its accuracy relies on controlled high quality capture data and is negatively affected by several factors such as angle, occlusion, and dilation. Non-ideal iris recognition is a new research focus in biometrics. In this paper, we present a gaze estimation method designed for use in an off-angle iris recognition framework based on the ORNL biometric eye model. Gaze estimation is an important prerequisite step to correct an off-angle iris images. To achieve the accurate frontal reconstruction of an off-angle iris image, we first need to estimate the eye gaze direction from elliptical features of an iris image. Typically additional information such as well-controlled light sources, head mounted equipment, and multiple cameras are not available. Our approach utilizes only the iris and pupil boundary segmentation allowing it to be applicable to all iris capture hardware. We compare the boundaries with a look-up-table generated by using our biologically inspired biometric eye model and find the closest feature point in the look-up-table to estimate the gaze. Based on the results from real images, the proposed method shows effectiveness in gaze estimation accuracy for our biometric eye model with an average error of approximately 3.5 degrees over a 50 degree range.

Paper Details

Date Published: 31 May 2013
PDF: 9 pages
Proc. SPIE 8712, Biometric and Surveillance Technology for Human and Activity Identification X, 87120F (31 May 2013); doi: 10.1117/12.2018614
Show Author Affiliations
Mahmut Karakaya, Oak Ridge National Lab. (United States)
Del Barstow, Oak Ridge National Lab. (United States)
Hector Santos-Villalobos, Oak Ridge National Lab. (United States)
Joseph Thompson, Oak Ridge National Lab. (United States)
David Bolme, Oak Ridge National Lab. (United States)
Christopher Boehnen, Oak Ridge National Lab. (United States)

Published in SPIE Proceedings Vol. 8712:
Biometric and Surveillance Technology for Human and Activity Identification X
Ioannis Kakadiaris; Walter J. Scheirer; Laurence G. Hassebrook, Editor(s)

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