2008 Volume 20 Issue 4 Pages 187-190
Human visual system can perceive 3D structure from optic flow or velocity field. We confirmed the 3D structure perception from the steady and continuous velocity field produced by cyclic presentation of several correlated random dot images. In addition, we investigated the velocity field perception for the factors of the number of phases (n), the temporal duration (△T) and the positional deviation (△d). Then, we found that there is suitable range of△T and △d for given n in which the velocity field could be perceived clearly.