抄録
This paper proposes an image projection system using a projector and a sphere-shaped screen. Several infrared LEDs attached on the screen are captured by a head-mounted camera for estimating 3D position and orientation of the screen, and a CG image corresponding to the user's viewpoint is generated according to the estimation result. By showing the image via the projector, our system provides the user with a feeling like there is a virtual object in the sphere-shaped screen.