Optical occlusion in a see-through AR system

Mutual occlusion is an attribute of an augmented reality system. It makes the user confirm that the virtual objects truly exist in the real world. Traditional optical see-through displays are not capable of correctly presenting the mutual occlusion of real and virtual environments, since the synthetic objects always appear as translucent ghosts floating in front of the real scene. This paper presents a novel optical see-through HMD. Aim at this new type HMD some feasible method is presented to realize the mutual occlusion. A LCD panel is introduced in our display for the occlusion. Experimental results show that the methods based on the novel display can integrate a virtual object in a real scene seamlessly.