EyeSecret: an inexpensive but high performance auto-calibration eye tracker

Authors:
Zhang Yun;Zhao Xin-Bo;Zhao Rong-Chun;Zhou Yuan;Zou Xiao-Chun
Affiliations:
Northwestern Polytechnical University, Xi'an, Shaanxi, China;Northwestern Polytechnical University, Xi'an, Shaanxi, China;Northwestern Polytechnical University, Xi'an, Shaanxi, China;Northwestern Polytechnical University, Xi'an, Shaanxi, China;Northwestern Polytechnical University, Xi'an, Shaanxi, China
Venue:
Proceedings of the 2008 symposium on Eye tracking research & applications
Year:
2008

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Abstract

With the aim to provide an inexpensive but high performance real-time head mounted eye tracker, named EyeSecret, we present a novel system derived from openEyes which share the common idea to integrated Eye tracker to everyday life and reach its full potential. To obtain the robustness, intrusiveness and accuracy from relative low-cost and off-the-shelf components, we developed the system by parallel hardware and software design. We employed reverse engineering and the rapid prototyping design and manufacturing as a measurement of head gear designing; moreover, two sets of auto-calibration plans were introduced to automatically acquire the coordinates of calibration markers in real scene, and we also improved infrared (IR) source and implemented laser to get qualified image and facilitates the eye tracker. Our system can reliably estimate eye position with normal head motion indoors or outdoors and reach an accuracy of approximately 1° visual angle, ±30° horizontal FOV (Field of View) and ±25° vertical FOV.