Discrimination of gaze directions using low-level eye image features

Zhang, Yanxia and Bulling, Andreas and Gellersen, Hans (2011) Discrimination of gaze directions using low-level eye image features. In: Proceedings of the 1st international workshop on pervasive eye tracking 38; mobile eye-based interaction. PETMEI '11 . ACM, New York, pp. 9-14. ISBN 978-1-4503-0930-1

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In mobile daily life settings, video-based gaze tracking faces challenges associated with changes in lighting conditions and artefacts in the video images caused by head and body movements. These challenges call for the development of new methods that are robust to such influences. In this paper we investigate the problem of gaze estimation, more specifically how to discriminate different gaze directions from eye images. In a 17 participant user study we record eye images for 13 different gaze directions from a standard webcam. We extract a total of 50 features from these images that encode information on color, intensity and orientations. Using mRMR feature selection and a k-nearest neighbor (kNN) classifier we show that we can estimate these gaze directions with a mean recognition performance of 86%.

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16 Aug 2012 10:29
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21 Nov 2022 14:45