Development of Augmented Reality Teaching Materials with Projection Mapping on Real Experimental Settings

Abstract

An augmented reality (AR) technology was applied in connection with a method of projection mapping to display physical quantities on real experimental settings. Physical quantities such as force and velocity were visualized by AR objects and projected onto real objects in an experiment. This image projection onto real objects was found to be effective in such a case where a user manipulates the real object resulting in changes of the magnitudes of physical quantities and the object position. The time delay between the motion of projected AR objects and the video images of real objects was measured on a simple rotating bar object. It was found that the phase delay between the AR objects and the projected image of the real object increased with the angular velocity of the object. The present method seems to be most relevant to static or quasi-static content in which user manipulation is included. © Springer International Publishing Switzerland 2014.