Augmenting Three-dimensional Effects in Digital Exhibition of a Cultural Artifact using 3D Pseudo Hologram

With the surge of realistic 3D contents, digital exhibition of a cultural artifact gets much attention as one of the major applications. However, in the case of conventional digital exhibition the sense of artificiality is still a challenge because virtual contents are represented through a flat display device that often neglects the differences in depth perception. To represent the cultural artifact in a realistic manner, it is necessary to provide a natural visual depth as well as realistic reproduction of the colors of the appearance material. In this paper, we present a new 3D pseudo hologram system that provides natural three-dimensional effect to virtual cultural artifacts to multiple users simultaneously without wearing special glasses. The proposed system consists of multiple projector-camera pairs, a 3D projection surface by the physical mock-up of an original artifact, and a half-silvered mirror. We project the digital image of a cultural artifact onto the physical mock-up with geometric and radiometric calibrations using the multiple projector-camera system. The experimental result shows an appealing photorealistic three-dimensional pseudo hologram image from a wide view angle. We are expecting to see various immersive experience to the user by the proposed system.