Accommodation Depth in 3-D Display System Using Two Stereoscopic Displays at Different Depths

摘要

This paper describes a display system that creates a 3-D image by overlapping two identical 3-D images displayed by two stereoscopic displays at different depths. Both images were displayed so that observers perceived them at the same depth and could see them fused into one image. We measured the accommodation depth of the observers' eyes when they saw the fused image. We found that the accommodation depths when they saw the fused images differed from that when either of the stereoscopic displays presented a single image by itself. This accommodation depth for fused image was between them. These results indicate that the accommodation depth was determined by the reciprocal effect of the two displays. This indicates the possibility that this display system can provide stereoscopic, views without there being any contradictions between accommodation depth and perceived depth for 3-D images.