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An algorithm for detecting the center of the iris using a color image and improvement of its processing speed
Author(s) -
Yonezawa Tetsuya,
Ogata Kohichi,
Shiratani Kazuyuki
Publication year - 2009
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.10088
Subject(s) - computer vision , artificial intelligence , computer science , gaze , iris (biosensor) , center (category theory) , matching (statistics) , template matching , reduction (mathematics) , iris recognition , eye tracking , head (geology) , image (mathematics) , mathematics , biometrics , chemistry , statistics , geometry , crystallography , geomorphology , geology
We have studied a man–machine interface system by using an eye gaze detection technique. Target users for this system are ordinary people and orthopedically impaired people who have no movement in their hands and head. Ordinary people can use this system under the condition that they do not move their head. An algorithm for detecting the center of the iris is proposed in this paper. An image of the eye is captured with a small video camera and the center of the iris is obtained by filtering in color space and pattern matching with a ring‐shaped template. Improvement of the pattern matching speed is also described and the effectiveness of the reduction of calculation costs is shown. Furthermore, the accuracy of the eye gaze detection was evaluated. © 2009 Wiley Periodicals, Inc. Electron Comm Jpn, 92(4): 1–8, 2009; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/ecj.10088