Remote Gaze Tracking System on a Large Display

Hyeon Lee, Won Lee, Chul Cho, Su Gwon, Kang Park, Heekyung Lee, Jihun Cha
2013 Sensors  
We propose a new remote gaze tracking system as an intelligent TV interface. Our research is novel in the following three ways: first, because a user can sit at various positions in front of a large display, the capture volume of the gaze tracking system should be greater, so the proposed system includes two cameras which can be moved simultaneously by panning and tilting mechanisms, a wide view camera (WVC) for detecting eye position and an auto-focusing narrow view camera (NVC) for capturing
more » ... nlarged eye images. Second, in order to remove the complicated calibration between the WVC and NVC and to enhance the capture speed of the NVC, these two cameras are combined in a parallel structure. Third, the auto-focusing of the NVC is achieved on the basis of both the user's facial width in the WVC image and a focus score calculated on the eye image of the NVC. Experimental results showed that the proposed system can be operated with a gaze tracking accuracy of ±0.737°±0.775° and a speed of 5~10 frames/s.
doi:10.3390/s131013439 pmid:24105351 pmcid:PMC3859072 fatcat:vkdxdkinvfc4xgorbrwsvgcj6u