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Long Range Eye Gaze Tracking System for a Large Screen

Title
Long Range Eye Gaze Tracking System for a Large Screen
Author
김회율
Keywords
Power Energy and Industry Applications; Components, Circuits, Devices and Systems; Fields, Waves and Electromagnetics; Cameras; Calibration; Face; Optical imaging; Tracking; Image resolution; pupil-corneal; Eye gaze tracking; human computerinteraction; gaze estimation
Issue Date
2012-11
Publisher
USA: IEEE
Citation
IEEE Transactions on Consumer Electronics, Vol.58, No.4 [2012], p1119-1128
Abstract
Eye gaze tracking system has been widely researched for the replacement of the conventional computer interfaces such as the mouse and keyboard. In this paper, we propose the long range binocular eye gaze tracking system that works from 1.5 m to 2.5 m with allowing a head displacement in depth. The 3D position of the user's eye is obtained from the two wide angle cameras. A high resolution image of the eye is captured using the pan, tilt, and focus controlled narrow angle camera. The angles for maneuvering the pan and tilt motor are calculated by the proposed calibration method based on virtual camera model. The performance of the proposed calibration method is verified in terms of speed and convenience through the experiment. The narrow angle camera keeps tracking the eye while the user moves his head freely. The point-of-gaze (POG) of each eye onto the screen is calculated by using a 2D mapping based gaze estimation technique and the pupil center corneal reflection (PCCR) vector. PCCR vector modification method is applied to overcome the degradation in accuracy with displacements of the head in depth. The final POG is obtained by the average of the two POGs. Experimental results show that the proposed system robustly works for a large screen TV from 1.5 m to 2.5 m distance with displacements of the head in depth (+/- 20 cm) and the average angular error is 0.69 degrees.(1)
URI
https://ieeexplore.ieee.org/document/6414976/
ISSN
0098-3063
DOI
10.1109/TCE.2012.6414976
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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