Increasing Precision of Pupil Position Detection Using the Corneal Reflection
In general, the relative position between the centers of the pupil and corneal reflection are used for precise eye-gaze detection. Recently, for stable pupil detection under various ambient light conditions, the pupil has been detected by the difference between the bright and dark pupil images. Howe...
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Published in | Eizō Jōhō Media Gakkaishi Vol. 62; no. 7; pp. 1122 - 1126 |
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Main Authors | , |
Format | Journal Article |
Language | Japanese English |
Published |
The Institute of Image Information and Television Engineers
2008
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Online Access | Get full text |
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Summary: | In general, the relative position between the centers of the pupil and corneal reflection are used for precise eye-gaze detection. Recently, for stable pupil detection under various ambient light conditions, the pupil has been detected by the difference between the bright and dark pupil images. However, due to the difference in acquisition timing between the bright and dark images, the precision of the pupil position easily decreases when the head moves. We propose a compensation method which differentiates those pupil images after shifting one of the images so that the positions of corneal reflections in both images should match, and show its effectiveness. |
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ISSN: | 1342-6907 1881-6908 |
DOI: | 10.3169/itej.62.1122 |