Iris Localisation for a Head-Mounted Eye Tracker
نویسندگان
چکیده
This paper discusses the image processing techniques needed to localise the iris outline in images of the eye produced by a novel, portable eye tracker. The tracker allows gaze direction to be measured by supplying simultaneous views of a subject's eye and of the world from a headmounted camera. Finding gaze direction relative to the head requires accurate and robust measurement of the iris outline under a wide range of lighting conditions, in the presence of highlights, and when the iris is in an extreme position. We describe a reliable method to solve this problem, which achieves a gaze direction accuracy of under 2 degrees.
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تاریخ انتشار 1995