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Reliability Measurement Technique of The Eye Tracking System Using Gaze Point Information

사용자 응시지점 정보기반 시선 추적 시스템 신뢰도 측정 기법

  • Received : 2016.08.29
  • Accepted : 2016.10.20
  • Published : 2016.10.31

Abstract

In this paper, we propose a novel method to improve the accuracy of eye trackers and how to analyze them. The proposed method extracts a user profile information created by extracting gaze coordinates and color information based on the exact pupil information, and then, it maintains a high accuracy in the display. In case that extract the user profile information, the changes of the accuracy for the gaze time also is estimated and the optimum parameter value is extracted. In the experimental results for the accuracy of the gaze detection, the accuracy was low if a user took a short time in a specific point. On the other hand, when taking more than two seconds, the accuracy was measured more than 80 %.

본 논문에서는 사용자 시선 추적에 사용되는 시선 추적기의 정확도 향상 및 이를 분석하는 방법을 제안한다. 제안하는 방법에서는 시선 좌표와 색 정보를 추출하여 정확한 동공 정보를 기반으로 만들어진 사용자 profile 정보를 추출한 후 이를 기반으로 시선 추적기가 부착된 디스플레이에서 고르게 높은 정확도를 유지 하도록 한다. 이 때 사용자 profile 정보 추출 시 응시 시간에 따른 정확도의 변화 또한 추정하여 최적의 파라미터 값을 추출한다. 시선 추적의 정확도에 대한 실험 결과 짧은 시간으로 특정지점을 응시할 경우 시선 추적의 정확도가 낮게 측정되지만, 응시 시간을 2초 이상의 유지 시 80% 이상의 높은 시선 추적 정확도가 측정됨을 알 수 있었다.

Keywords

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