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Detection of Pupil and Corneal Reflection Using High-speed Camera for Gaze Detection Under Face Intense Illumination and a Solution of Glass Reflection Problem by Improving Light Source

  • Kiyotaka FukumotoEmail author
  • Yoshinobu Ebisawa
  • Kohei Mochizuki
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 528)

Abstract

In our pupil-corneal reflection-based gaze detection system, when users move the head quickly, the image difference method for detecting the pupils does not tend to function accurately. In addition, it becomes more difficult to detect the corneal reflection of the near-infrared light source as well as the pupil under face intense illumination condition because the pupils constrict and the disturbance light source, e.g. the sun, is misdetected as the corneal reflection. Moreover, when the users wear glasses, the reflections of glasses tend to be misdetected as the pupil and corneal reflection (feature points). In the present paper, we introduce a high-speed camera (2,000 fps) and propose a new detection method additionally acquiring a non-lighting image and then differentiating the image from the bright and dark images to detect the feature points even under the face intense illumination condition. In addition, a new light source for removing the glass reflections and enhancing the brightness difference between the bright and dark pupils is developed. The experimental results show that the robustness for the detection of the feature points is improved both under the face intense illumination condition and under the glasses-wearing condition.

Keywords

High-speed camera Pupil Corneal reflection Intense illumination 

References

  1. 1.
    Ebisawa, Y., Fukumoto, K.: Head-free remote eye-gaze detection system based on pupil-corneal reflection method with easy calibration using two stereo-calibrated video cameras. IEEE Trans. Biomed. Eng. 60(10), 2952–2960 (2013)CrossRefGoogle Scholar
  2. 2.
    Ebisawa, Y., Fukumoto, K.: Head-free, remote gaze detection system based on pupil-corneal reflection method with using two video cameras -one-point and nonlinear calibrations. In: HCI International 2013, pp. 205–214 (2013)Google Scholar
  3. 3.
    Nakashima, A., Ebisawa, Y., Nurikabe, Y.: Pupil detection using light sources of different wavelengths. J. Inst. Image Inf. Telev. Eng. 60(12), 2019–2025 (2006)Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Kiyotaka Fukumoto
    • 1
    Email author
  • Yoshinobu Ebisawa
    • 1
  • Kohei Mochizuki
    • 1
  1. 1.Graduate School of EngineeringShizuoka UniversityHamamatsuJapan

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