Mouth center detection under active near infrared illumination
SIP'07 Proceedings of the 6th Conference on 6th WSEAS International Conference on Signal Processing - Volume 6
TUNIR: a multi-modal database for person authentication under near infrared illumination
ISPRA'07 Proceedings of the 6th WSEAS International Conference on Signal Processing, Robotics and Automation
TUNIR: a multi-modal database for person authentication under near infrared illumination
ISPRA'07 Proceedings of the 6th WSEAS International Conference on Signal Processing, Robotics and Automation
A fast connected components labeling algorithm and its application to real-time pupil detection
Machine Vision and Applications - Integrated Imaging and Vision Techniques for Industrial Inspection
Facial-feature detection and localization based on a hierarchical scheme
Information Sciences: an International Journal
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Eye detection is very important for automatic face recognition and gaze tracking. In this paper we propose an algorithm for eye detection under active infrared (IR) illumination. A simple hardware enables us to make use of a physiological property of the eyes. A new thresholding method is introduced in order to effectively search the regions of interest (ROI). An appearance model is then used to verify the pupil candidates. However, the existence of eyeglasses has a negative effect on selection of candidates. Regarding this the generalized symmetry transform (GST) is exploited. By using a simplified distance weight, we reduce the computational cost of the original transform. Experimental results demonstrate the effectiveness of the proposed eye detection method.