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Ultra-realistic virtual object representation is an old dream of humanity. From the 3D Paleolithic rock painting to the late Michael Jackson holographic shows, humans have investigated display solutions to give life to the abstraction. The incredible opportunities given by the digital revolution have paved the way to the recent development of innovative volumetric displays. These complex solutions are however still limited in the visual experience they can offer to the viewer. In a more concerning manner such devices often appear as empty shells as their effective usefulness is not yet clearly defined. Recently, we have proposed an original volumetric display concept based on a 360° projection configuration. Inspired from the pepper ghost concept and from the praxinoscope design of the end of the XIX century, our display mixes real projection on transparent retroreflective surface and virtual images superimposition. This development has been made in collaboration with a group of live performing artists in France. The 360° display has been used to present an original creation of the artists and the confrontation with the public has highlighted some unexpected properties of this family of displays. We describe here the technological concept of our display and the evolutions we target to improve the visual rendering. The collaboration project with the artists is also presented and we give our analysis on the feedback of the public.
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Christophe Martinez, Yann Lee, Nicolas Clement, Frédéric Sermet, Denis Sarrasin, Joris Mathieu, Nicolas Boudier, "Development of a 360 degree display based on transparent projection surface: application to a theatrical performance," Proc. SPIE 10942, Advances in Display Technologies IX, 109420J (1 March 2019); https://doi.org/10.1117/12.2507258