Abstract

본 연구는 개인의 불편감을 최소로 유지한 상태에서 3D 자극의 깊이를 늘려나가는 수렴 훈련을 통해 시각적 불편감이 감소되는지를 알아보고자 수행되었다. 실험집단은 수렴 훈련에 사용된 자극의 입체시 깊이가 순차적으로 변화하는지 무선적으로 변화하는지에 따라 두 개의 훈련 집단으로 나뉘었다. 수렴 훈련은 약 2주 간격으로 3회 실시되었으며 훈련 집단의 융합영역(fusional range)을 증가시켰다. 수렴 훈련이 시각적 불편감에 미치는 영향을 평가하기 위해 훈련 회기의 전과 후에 3D 영상을 시청하게 한 뒤, 주관적인 시각적 불편감을 설문 문항으로 측정하였다. 실험 결과, 시각적 불편감은 훈련 자극의 깊이를 순차적으로 변화시킨 훈련집단에서 감소하였다. 이러한 결과는 반복된 수렴 훈련이 3D 환경에서 시각적 불편감을 줄이는 데 효과적일 수 있음을 시사한다. The present study investigated whether convergence training in which has an effect on reducing visual discomfort in viewing 3D TV. The stereoscopic depth of 3D training stimulus was gradually increased while maintaining individual visual discomfort at a minimum value. Participants were randomly assigned into one of three groups: a control group and two training groups. For both training groups, all procedure and the disparity range of training stimuli were the same except the order of the disparities of training stimuli. One of the two different training procedure was provided: gradual change or random change of the disparities of training stimulus. Training itself was very effective so that convergence fusional range was improved after three sessions of training with intervals of two weeks. In order to evaluate the effect of convergence training on visual discomfort, the subjective visual discomfort in 3D TV viewing was measured before and after training sessions using questionnaire. The results showed that a significant reduction in visual discomfort was found after training only in the group of gradual change. These results demonstrated a repeated convergence training might be helpful in reducing the visual discomfort in 3D TV environment.

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