出版社：The Institute of Image Information and Television Engineers
摘要：When we observed high density directional images, eye accommodation was focused on 3D images1) 2) . There might be anisotropic accommodation responses in observing the edge being inclined to a direction in them, when we put them horizontally. We measured subjects' accommodation responses when they observed it. They observed targets under three conditions (high density directional images IHDI, stereo images {SI}, and real targets {RT}). the target was a checker which was set at five distances (400 mm, 500 mm, 600 mm, 700 mm and 800 mmfrom the subject's eyes) and was inclined at four angles (0°, 30°, 60°, and 90°), of which 0° was defined as the vertical edge. in the case of 0°, accommodation responses under condition HD were similar to those under condition RT. As the target edge was inclined to the horizontal, accommodation responses under condition HDapproached those under condition SI. Accommodation distance under the HD condition was not farther from the target than under the SI condition. These results indicated that there was anisotropy in accommodation responses in observing high density directional images.
