NDLI: Measurement of rotational eye movement with blue light irradiation

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Measurement of rotational eye movement with blue light irradiation

Content Provider	ACM Digital Library
Author	Tomida, Motomasa Ono, Nayuta Hoshino, Kiyoshi Igo, Naoki
Abstract	It is difficult to measure rotational eye movement constantly from "almost black eyeball image" acquired under the condition that the brightness of an image content being watched by a user is very low or the condition that almost no light is irradiated from its surrounding environment. To solve this problem, turning our attention to the "conjunctival blood vessel ends" located on the periphery of the iris, which are not affected by the changes in pupil diameter, as well as small "blue LED light" irradiation as auxiliary light, the authors developed a new method for measuring rotational eye movement at high accuracy by enhancing the contrast in the image of the vessels on the white of the eyeball. This paper proposes the above-mentioned new method to enable a measuring system, which is not subject to the changes in pupil diameter and eyelid closure, and has been compactly-designed in terms of both software and hardware with a miniature camera. In our evaluation experiment, the images of rotational eye movements were captured, and data on the vessel end positions were obtained by both visual measurement and this system to evaluate the estimated error and processing speed. The result suggests that our proposed system is capable of measuring rotational eye movement with an average of estimated errors equal to or lower than 0.24 degrees, even with almost black eyeball image.
Starting Page	50
Ending Page	54
Page Count	5
File Format	PDF
ISBN	9781450348249
DOI	10.1145/3022702.3022713
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2016-11-12
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Conjunctival blood vessel ends Auxiliary light Rotational eye movement Almost black eyeball image Blue light irradiation
Content Type	Text
Resource Type	Article

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