３次元映像情報メディア技術 立体画像システム観察時の融像性ふく湊限界の分布

Abstract

Stereoscopic image systems based on binocular parallax can present a stereo pair of images with significant binocular parallax. However, if such parallax often approaches or exceeds the viewer's fusional ability, eye strain or visual fatigue may result. In this regard, it is necessary to assess many human subjects in order to design stereoscopic image systems. We measured fusional vergence limits (or diplopia threshold) of many people without any additional correction of ophthalmic function from the ordinary because of the idea that the variation of the ophthalmic function of many people is one of the factors in the distribution of fusional vergence limits. As a result, the distribution function of fusional vergence limits was clarified. This result will contribute the design of stereoscopic image systems and contents. We also found that the experience of watching stereoscopic contents affects the fusional convergence limits, and that the viewer's eye position (heterophoria) shifts the range of fusional vergence.