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자료유형
학술대회자료
저자정보
Jihyung Lee (POSTECH) Nahyun Lee (POSTECH) Jaechun Cho (POSTECH) Baekhee Lee (POSTECH) Kyunghyun Jin (Kyung Hee University Hospital at Gangdong) Hyejee Kim (Kyung Hee University Hospital at Gangdong) Younggyun Kim (Kyung Hee University Hospital at Gangdong) Jaheon Kang (Kyung Hee University Hospital at Gangdong) Heecheon You (POSTECH)
저널정보
대한인간공학회 대한인간공학회 학술대회논문집 대한인간공학회 2015 추계학술대회
발행연도
2015.10
수록면
76 - 80 (5page)

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Objective: The present study to evaluate an ergonomic gaze fixation induction method for gaze fixation during visual field testing developed and applied a gaze fixation identification algorithm to the gaze tracking data analysis. Background: Development of the gaze fixation identification algorithm is necessary to evaluate the degree of gaze fixation which is important for checking the reliabilities of visual field testing. Method: the present study investigated factors of gaze tracking data and developed an identification algorithm to identify gaze fixation. 32 men and women (29.0 ± 4.4 yr) participated in gaze fixation testing to evaluate three gaze fixation induction methods (black dot, flashing black dot, bulls eye and cross hair) in the aspects of correct fixation rate using gaze fixation identification algorithm. Results: It is necessary to analyze gaze location at 0.2 seconds intervals before and after target presenting for identify a gaze fixation in visual field testing. If one of two interval gaze trajectory is belong within visual angle 1° when the gaze tracking data analyzed in 0.2 seconds intervals before and after target presenting, the gaze fixation identification algorithm decide to fix the participant’s gaze to a fixation target when the target presents. Correct fixation rate of flashing black dot (91.5%) and bulls eye and cross hair (88.0%) are higher 5.5% and 1.5% than that of black dot (86.7%). Conclusion: The analysis using short interval gaze tracking data at before and after target presenting is more effective method in visual field testing for evaluating the degree of gaze fixation. Application: The gaze fixation identification algorithm is expected to be effectively used for monitor-based gaze tracking research.

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ABSTRACT
1. Introduction
2. Method
3. Gaze Fixation Identification Algorithm
4. Application
5. Discussion
References

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UCI(KEPA) : I410-ECN-0101-2016-530-002088648