The image-processing system for measuring eye movement - The pupil-center algorithm using gray-level correlation

Takehito Hayami, Kazunori Shidoji, Katsuya Matsunaga

Research output: Contribution to journalArticle


This paper proposes a new image-processing system for measuring eye movement. The eye position can be determined by the method of Haslwanter (1995), which uses the coordinates of pupil center for each calibration position in the image plane. The center of the pupil in the image plane is calculated by the new algorithm using gray-level correlation. The point of this gray-level correlation algorithm is that the gray-levels of two symmetrical points have high correlation with respect to the center of the pupil. This system also measures pupil movement.

Original languageEnglish
Pages (from-to)235-239
Number of pages5
JournalResearch Reports on Information Science and Electrical Engineering of Kyushu University
Issue number2
Publication statusPublished - Sep 1 1997


All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Electrical and Electronic Engineering

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