Effect of body sway by using visual wide-field images

Abstract

Visually induced perception of self-motion, called vection, is an important element to decide physiological and psychological index of presence of virtual reality. We constructed a measurement system of body sway by using visual wide-field images and studied the influence of the different kinds of sway, sway direction, sway frequency, and the sway angle of images for body sway. We found out that the body sway becomes larger when vertical image rolls larger, and the the correlation between image sway and body sway become 90° phase-delay when the sway frequency of the image is higher than 0.3 Hz.