Wearable Interface Device Ryugo KIJIMA

In this paper, the author proposes a novel configuration using a projection type wearable display, infrared camera with light source, and retro-reflective screen. In this configuration, the image is projected onto the retro-reflective screen. The screen location as well as the finger tip position relative to the user’s head is achieved using infrared camera and image processing. These locations are used for the interaction with the displayed object. Owing to the high reflection gain of retro-reflective screens, a small and light weight projector can be used. Also the high contrast between the screen and the other environmental object in the captured infrared image decreases the difficulty of the image processing for the screen and fingertip location. Thus this configuration can offer both the merits of a PDA type and eyeglass type configuration.