Abstract
We measured eye movements to examine the effect of the ocular parallax induced by small eye movements as a common observation. We analyzed gazing positions, sight line path of intergazing positions, and duration time. The results show that gazing positions are distributed in bounded region to a certain extent, and sight line paths are distributed isotropically, during gazing on a planar surface in some depth. On the other hand, when human gazes the surfaces which are located in different depth, gazing positions are distributed in a wider area and closer to each other, and tend to shift a sight line in order to compare ocular parallax between two surfaces. These results indicate the possibility that human uses the ocular parallax as a cue of depth perception.
