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Gaze tracking based on similarity between spatial triangles and two-stage calibration

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4 Author(s)
J. Sun ; Shandong University, China ; C. Yang ; J. Liu ; X. Yang

Gaze tracking is an important technique for human-computer interaction. A novel gaze tracking method with two lights and one camera is proposed, in which the similarity between spatial triangles is utilised to estimate the point-of-gaze, and a two-stage calibration is used to improve the estimation precision. Experiments show this method has low complexity, and its average gaze estimation error is about 0.7306° with a head movement range of 20 × 17 × 10 cm (width-height-depth).

Published in:

Electronics Letters  (Volume:47 ,  Issue: 4 )