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In this paper, we introduce the outline of "The MR-PreViz Project" performed in Japan. In the pre-production process of filmmaking, PreViz, pre-visualizing the desired scene by CGI, is used as a new technique. As its advanced approach, we propose MR-PreViz that utilized mixed reality technology in current PreViz. MR-PreViz makes it possible to merge the real background and the computer-generated humans and creatures in open set or at outdoor location. The user can consider the camerawork and camera blocking efficiently by using MR-PreViz. This paper introduces the outline of the MR-PreViz project, the design of hardware configuration, camera-work authoring method and the results of prototyping.

Many studies on body representation intend to change the perceived size, material, and structure of the body. However, whether the perception of a stimulus can be modified by manipulating body representation remains largely unexplored. Thus, the current study investigated the relationship between transparency of body representation and pain perception. Using augmented reality technology, we made the participants’ limbs transparent and analyzed changes in body representation. Using a questionnaire, we confirmed that the participants perceived their limb as transparent. Simultaneously, their sense of ownership of the limb decreased, because they felt that it no longer belonged to their body. The participants were given an electrical stimulus to assess their subjective perception of pain intensity. An increase in limb opacity decreased the perception of pain, which, in turn, increased the feeling of transparency. These results suggested that the feeling of transparency in their limb favored the decrease in perceived pain. This effect was modified by body ownership, where high levels reinforced the analgesic effect. However, body ownership displayed a positive relationship with perceived pain. The study suggests that body transparency may constitute a strategy for decreasing refractory pain given that body ownership is retained at a high level.