Two types of occlusion cue in 3-D perception with binocular viewing

Two types of occlusion cues in binocular fusion were investigated by using the phenomenon of 3-D illusion. In the first type, the visibility of the occluded object was changed at the border of the contours of the occluding object. In the other type, the visibility of the occluded object was changed at the surface of the occluding object. Here, the visibility was changed when the occluded object passed through the surface from the outside space to the inside space of the occluding object. These occlusion cues have close relations with the visual perception of 3-D space in binocular viewing and can reveal the mechanism underlying the 3-D space perception ability of the human visual system. Based on these occlusion cues, a new interpolation becomes possible for the perception of the random dot stereogram