Advertisement

Head-Free, Remote Eye-Gaze Detection System with Easy Calibration Using Stereo-Calibrated Two Video Cameras

  • Yoshinobu Ebisawa
  • Kazuki Abo
  • Kiyotaka Fukumoto
Part of the Communications in Computer and Information Science book series (CCIS, volume 174)

Abstract

The video-based, head-free, remote eye-gaze detection system based on detection of the pupil and the corneal reflection was developed using stereocalibrated two cameras. The gaze detection theory assumed the linear relationship; θ = k|r′|. Here, θ is the angle between the line of sight and the line connecting between the pupil and the camera, and |r’| indicates the size of the corneal reflection - pupil center vector. Three novel easy calibration methods were proposed; ‘automatic’, ‘one-point’, and ‘two-point’. In the ‘automatic’, the user does not have to fixate the specific location in the PC screen. In the ‘one-point’, the angular difference between the optical and visual axes of the eye was determined and used for compensation. The ‘two-point’ was proposed to compensate the nonlinear relationship between |r’| and θ, which occurs when θ is large. The precision of gaze detection was compared among the three methods using the developed gaze detection system.

Keywords

eye-gaze detection pupil corneal reflection user calibration head-free infant 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Guestrin, E.D., Eizenman, M.: General theory of Remove Gaze Estimation Using the Pupil Center and Corneal Reflections. IEEE Trans. on Bioml. Eng. 53(6), 1124–1133 (2006)CrossRefGoogle Scholar
  2. 2.
    Zhu, Z., Ji, Q.: Novel Eye Gaze Tracking Techniques under Natural Head Movement. IEEE Trans. on Bioml. Eng. 54(12), 2246–2260 (2007)MathSciNetCrossRefGoogle Scholar
  3. 3.
    Tobii Technology, http://www.tobii.com/
  4. 4.
    Eye Tech Digital Systems, http://www.eyetechds.com/
  5. 5.
    Kondou, Y., Ebisawa, Y.: Easy Eye-Gaze Calibration using a Moving Visual Target in the Head-Free Remote Eye-Gaze Detection System. In: Proc. of VECIMS 2008, pp. 145–150 (2008)Google Scholar
  6. 6.
    Jones, W., Carr, K., Klin, A.: Absence of Preferential Looking to the Eyes of Approaching Adults Predicts level of Social Disability in 2-Year-Olds Toddlers with Autism Spectrum Disorder. Archives of General Psychiatry 65(8), 946–954 (2008)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Yoshinobu Ebisawa
    • 1
  • Kazuki Abo
    • 1
  • Kiyotaka Fukumoto
    • 1
  1. 1.Faculty of EngineeringShizuoka UniversityHamamatsuJapan

Personalised recommendations