Abstract
Subjective staircase illusion is a well-known binocular visual illusional phenomenon in psychology of vision and physics of vision. It is the phenomenon in which 3D staircase pattern appears, when a tilted dot matrix pattern is observed in binocular vision from the horizontal direction. Although the “nearest neighbour rule” in both-eyes' retina correspondence has recited in psycho-physical field as a fundamental hypothesis which causes this phenomenon, there is no verification of the rule. Then, in this research, the following verification was performed through the construction of a both-eyes' retina image computational model which imitated human's vision, and the computer experiment.
(1) Verification of whether staircase illusion occurs only from both eyes' retina image
(2) Verification of whether nearest neighbour rule works really correctly
About (2), because a more concrete and detailed rule expression was required to build a both-eyes' retina image computational model, “Nearest Neighbour Computational Rule” was newly formulized. Finally, while clarifying geometric structure of both eyes' retina image, it was verified that the staircase illusion occurs only from both-eyes' retina image of tilted dot matrix pattern.
