The Design and Development of TWISTER II: Immersive Full-color Autostereoscopic Display

This paper reports the design, development, and preliminary performance evaluation of TWISTER II (Telexistence Wide-angle Immersive STEReoscope model II), an immersive full-color autostereoscopic display. The project is designed for the purpose of a face-to-face telecommunication system called “mutual telexistence.” The basic idea of mutual telexistence is the projection of human beings into a mutual virtual environment in real time. Each human user resides inside a booth with a spinning circular mechanism, which plays the role of both the display and the input device. With plural booths, each user can see the three dimensional figures of other users working in real time in the mutual virtual environment. We implemented the display partially, and confirmed its performance as a stereoscopic display of full-color still images. It has been found experimentally to have enough tonal resolution and brightness. We studied the display gamma characteristics, as well as the display stability: to what extent a human observer can fuse an image with rotating LED arrays. We also focused on the performance of the “moving parallax barrier,” which basically proved to contribute to stereopsis.