Evaluation of Visual Fatigue and Sense of Presence for CAVE-like multi-projection display

We created a virtual-reality simulation of sea fish for science education and displayed it using a CAVElike multi-projection display. Our intent with the display was to provide actual-size objects and produce stereoscopic 3D images of fish close to the observer, thus enhancing interactions with and understanding of the virtual fish. To examine the safety aspects and functional effects of the VR simulation with regard to observers, we conducted an experiment to evaluate observers’ visual fatigue and sense of presence while viewing the stereo images of fish located close to the observer in the CAVE-like display. The results of the visual fatigue evaluation showed that even for images with a large disparity, there was little ill effect from viewing the stereo images for a short duration. The results for sense of presence showed that the scores for questions about immersion in the virtual environment and concentration on the assigned tasks were highest while viewing stereo images located close to the observer in the CAVE-like display.