Shifts in Binocular Fixation-point induced by an Occlusion

Abstract

The human visual system works well, although an occlusion causes incongruity between the left retinal image and the right one. So, binocular eye movements were measured to investigate how humans see a limb when limb-occlusion occurs. The two cases of whether an object had a texture or not, that is, an occlusion is perceived or not, were tested. The following conjectures resulted : Humans tend to shift each eye's fixation-point to outward, when limb-occlusion is perceived. Limb-occlusion has a greater effect than the depth discontinuity due to differences of visual distance.