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In this paper, we propose a telepresence system that is able to provide care from a remote location by implementing functions such as object recognition on a wheelchair (Figure 1 Left). In conventional remote control robots, the operator controls the system while receiving feedback from cameras mounted on the robot [Gundersen et al. 1996]. However, this operating method cannot capture the full environment around the system, even if we use wide FOV cameras, such as omnidirectional cameras. This leaves the operator with incomplete feedback. In order to utilize the telepresence system safely, it is necessary to solve the problem of the blind spot of the user. Further, human operators are limited by their attention span. The reaction time of the computer is greater than that of humans.

Virtual reality (VR) with HMD is closed experience among those who are experiencing the VR, and can only be individually experienced by the specific person. We call this "perspective gap." These perspective gaps exist in many situations. To address these problems, we present "ReverseCAVE", a system for sharing the experiences of people in VR with others (observer). As another application, it is possible to visually recognize the actual appearance of the person performing the act at the motion capture studio and the superimposed character at the same time. ReverseCAVE has four translucent screens surrounding the player. VR environment that the player is experiencing is projected onto the screens. By this, the observer can see both the physical player and the VR environment experienced by the player simultaneously. Also, in the motion capture system, when viewing the actor from the observer outside of ReverseCAVE, the character is superimposed to the actor. This makes it look as if the actor is the actual character from the observer. ReverseCAVE enhances the observers' experience.

We present a new method to protect projected content from secret photography using high-speed projection. Protection techniques for digital copies have been discussed over many years from the viewpoint of data protection. However, content displayed by general display techniques is not only visible to the human eye but also can be captured by cameras. Therefore, projected content is, at times, secretly taken by malicious small cameras even when protection techniques for digital copies are adopted. In this study, we aim to realize a protectable projection method that allows people to observe content with their eyes but not record content with camera devices.