A Study on Sigma Movement in the Spatio-Temporal Frequency Domain : Extension of Signal Processing on Visual Perception

Abstract

Sigma movement is the so-called illusion, in which, if motion stimulus is given to a flickering checker pattern, motion appears to the same direction as the stimulus, and, has been studied by psychologists for long time. In this paper, the motion is analyzed in the three dimensional spatio-temporal frequency domain, as visible motion (physical phenomena) in the modified visible frequency band caused by eye pursuit.