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Eyelid Detection Algorithm Based on Parabolic Hough Transform for Iris Recognition  

Jang, Young-Kyoon (Division of Computer Software, Sangmyung University)
Kang, Byung-Jun (Dept. of Computer Science, Sangmyung University)
Park, Kang-Ryoung (Division of Digital Media Technology, Sangmyung University)
Publication Information
Abstract
Iris recognition is biometric technology which uses a unique iris pattern of user in order to identify person. In the captured iris image by conventional iris recognition camera, it is often the case with eyelid occlusion, which covers iris information. The eyelids are unnecessary information that causes bad recognition performance, so this paper proposes robust algorithm in order to detect eyelid. This research has following three advantages compared to previous works. First, we remove the detected eyelash and specular reflection by linear interpolation method because they act as noise factors when locating eyelid. Second, we detect the candidate points of eyelid by using mask in limited eyelid searching area, which is determined by searching the cross position of eyelid and the outer boundary of iris. And our proposed algorithm detects eyelid by using parabolic hough transform based on the detected candidate points. Third, there have been many researches to detect eyelid, but they did not consider the rotation of eyelid in an iris image. Whereas, we consider the rotation factor in parabolic hough transform to overcome such problem. We tested our algorithm with CASIA Database. As the experimental results, the detection accuracy were 90.82% and 96.47% in case of detecting upper and lower eyelid, respectively.
Keywords
Iris Recognition; Eyelid Detection; Parabolic Hough Transform;
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Times Cited By KSCI : 2  (Citation Analysis)
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